PROJECT BLUE BOOK

PROJECT 10073 RECORD CARD
I. DATE LOCATION 12. CONCLUSIONS
Was Balloon
7 May 1955 Baltimore, Maryland 000 Probably Balloon
3. DATE-TIME GROUP 4. TYPE OF OBSERVATION Possibly Balloon
Local. XU Ground-Visual Ground-Radar 0 Was Aircraft
0 Probably Aircraft
GMT 07/1820Z 0 Air-Visual Air-Intercept Radar Possibly Aircraft
5. PHOTOS SOURCE 0 Was Astronomical
Yes 0 Probably Astronomical
XKNo XUKNo Civilian Civilian 0 Possibly Astranomical
7. LENGTH OF OBSERVATION 7.LENGTH OF OBSERVATION 8. NUMBER OF OBJECTS 9. COURSE COURSE 5× 5× Other Valve Wheel Other. Valve Wheel
0 Insufficient Data for Evaluation
0 Unknown
N/A two N/A
T0. BRIEF SUMMARY OF SIGHTING IO. BRIEF SUMMARY OF SIGHTING 11. COMMENTS
Two cast iron objects weighing 13 3/4 cast iron objects weighing 13 3/4 Checked with local iron compan-
and 5 1/4 pounds crashed thru the ies in Dayton ies in Dayton & objects believed & objects believed
American Oil Company in Baltimore, Md. to be part of old valve wheel. to be part of old valve wheel.
at time indicated.
7
Maxwell ATTN: A Aerospo Director
SMD Aerospoce Studies May
Maxwell AFB, Alapam ATTN: Archives Branch
RETURN 10: 1955
ATIC FORM 329 (REV 26 SEP 52) Insi

of a building occupied by the American Oil Company, Baltimore. Flt 3-H,
4602d AISS, McGuire AFB, N.J., performed the preliminary investigation
but was unable to reach a final evaluation.
4. The objects (initial object separated upon impact) were received
by ATIC on 16 May 1955 and found to be of fairly good cast iron composition.
However, no conclusive evaluation can be accomplished as to the true
identity or the source of the objects.
5. The purpose of this travel is in accordance with paragraph 4c,
AFR 200-2, da Aug 1954, short title, UFOI
6. The purpose of the travel to McGuire AFB is to discuss the case
with the initial investigat: Hanson, OIC, Flt
3-H, 4602d AISS.
7 7. The purpose of the travel to Baltimore is to interview the source, +mawol+o
Mr. , American Oil Company, and to determine the area
characteristics within a mile radius of the site of the incident.
8. Estimated time required for TDY is 3 days with departure o/a
24 May l955. Traveler certifies that no suspense items for which he is
responsible will become delinquent during the period of his TDY and travel
outside the Air Technical Intelligence Center.
COORDINATION:
ATIAE I Lt Col Harry C. Johnston, Branch Chief
ATIA Chief
ATI Brig General Watson, Commander
Opp

REQUEST AND AUTHORIZAT FOR TEMPORARY DUTY TRAVEL L ORDL FOR MILITARY PERSONNEL
("This form authorizes a wenditure of Government funds. Forms must be prepal curately in every detail
1. TO: (Orders Branch) 11a5th USAF Fld Activitics Group 2. PATE 3
(Air Technical Intelligence_Center)
REQUEST FOR AUTHORIZATION
(Request following temporary duty travel orders be authorized)
3. ACTIVITY REQUESTING TRAVEL ORDERS (Complete designation)
Electronics Branch, Technical Analysis Division, 1l25th UsAF F/A Gp
4. TYPED NAME, GRADE AND TITLE OF REQUESTING 5. ORGNL CODE 6. PHONE 7. FULL SIGNATURE OF REQUESTING
OFFICER NUMBER OFFICER
VAYNE L. O'HERN, Colonel, USAF ATLA 66310
Chief, Teconical Analysis Dividion
TEMPORARY DUTY TRAVEL ORDERS
(Continue on reverse side, if necessary)
8. LAST NAME FIRST NAME MIDDLE INITIAL 9. GRADE 10. SERVICE NUMBER 11. ORGANIZATION
DREPPERD, Albert W. T/sgt. A.T 57200963 1125th USAF F/A Gp ATIC
12. WILI. PROCEED O/A 13. FROM 14. TO (List itinerary)
24 May 1955 1. NoGuire AFB, New Jersey
15. APPROX NO. OF DAYS TDY (ATIC)
(Include tvl time) Wright-Patterson 2. Baltimore, Md
Three (3) days AFB, Ohio American Oil Company
Amerrcan Oli Company
16. PURPOSE OF TEMPORARY DUTY (ExpIAin in dEtail) 16. PURPOSE OF TEMPORARY DUTY (Explain in detaiD)
1. To perform follow-up investigation on To perform follow-up investigation UFO report in n accordance with para 40,
AFR 200-2, dated 12 Aug 54, short tle, UFOB Reporting.
17. 17. IS IS NOT AUTHORIZED IS NOT AUTHORIZED TO VARY ITINERARY AND TO VARY ITINERARY AND PROCEED TO SUCH TO SUCH ADDITIONAL PLACES AS NECESSARY ADDITION PLACES AS NECESSARY
(Must be justified in each instance by DD Form 96) (Must be justified in each instance by DD Form 96)
18. RETURN TO
Wright-Patterson AFB, Ohio
19. METHOD OF 19. METHOD TRAVEL (Use only if travel by privately owned conveyance is being authorized or if a particular mode of transportation is being TRAVEL (Use only if travel by privately owned conveyance is being authorized or if a particular mode of transportation is being
directed) (See AFR 75-38)
20. AUTHORITY NO.. PERTAINING TO THE ABOVE INDIVIDUAL(S)IS  REVOKED □AMENDED AS FOLLOWS
21. TRAVEL DIRECTED IS NECESSARY IN THE MILITARY SERVICE. CHARGE TO
AUTHORIZATION
22. OFFICIAL DESIGNATION OF APPROVING HEADQUARTERS 2S. LOCATION OF APPROVING HEADQUARTERS
1125th USAF F/A Gp, W-P AFB, Ohio Wright-Patterson AFB, Ohio
24. ALLOTMENT NO. 25. APPROVED UNDER AUTHORITY DELEGATED BY
AFR 35-52 and G0 31, Hq Comd 1951
26. DY..COMMANUKWEZ 27. . TYPED NAME, GRADE, SERVICE AND TITLE OF AIR ADJUTANT GENERAL. AIR
BY ORDER OF ADJUTANT OR AUTHENTICATING OFFICER, SEAL OR SIGNATURE
THE COMMANDER
THOMAS J. CONNAIR, JR
Major, USAF
28. NORMAL DISTRIBUTION Adjutant
Air Adjutant Ceneral (Original):
Budget & Fiseal (1): Morning Rept (1); 29. AUTHORITY NUMBER
Traveler (4): Office of Origin (1).
AMC Form 59 Previous editions of this form niay be used. AF-WP-L-31 JUL 52 1 Ml 487M
9 Jun 52

PART-OIC
ServiCGeyAmarican
aryLand
PART THnaComnents or Breparing Ortioer
H SneARv An mndantrsd fdyang Ooject panchatcd the ropi or the Aad
611 Company:Batmoc 1iyLand (GJPK2819) Gt7/1820z aNh.aoado.
contained in this report vas iron rthc person obseryang tie obioct ind Lro an
uCLAS

UFOBI INDEX CARD
1. DATE 2. LOCATION 12. CONCLUSIONS
7 May 1955 Baltimore, Maryland 0 Was Balloon
00 Probably Bailoon
3. 4. TYPE OF OBSERVATION 0 Possibly Balloon Possibly Balloon
DATE-TIME GROUP
Local Ground-Visual Ground-Radar 0 Was Aircraft
□ 0 Probobly Aircraft Probably Aircraft
GMT_ GMT. 07/18202 May 1955 07/18202 1ay 1955 Air-Vi sual Air-Intercept Radar ° Possibly Aircraft
5. PHOTOS 6. SOURCE 0 Was Astronomical Was Astronomical
Yes Probably Astronomical
No Civilian Civilian Possibly Astronomical
7. LENGTH OF OBSERVATION 8. NUMBER OF OBJECTS 9. 9. COURSE COURSE Other Dropped by Other Dropped_by
00 0 Insufficient Data for Evaluation
N/A 02) tw0 2) Thru roof Unknown Unknown
10. . BRIEF SUMMARY OF SIGHTING 11. COMMENTS |11. COMMENTS
An unidentified blying object penetrated the unidentified blying object penetrated the Investigated by Flight 3-H with the Investigated by Flight 3-H with the
roof of the American Cil Comcany. The objects following conelusions: The objects
appeared to be made of cast iron or similiar in question were released or fell
metal (forwarded to gric for analysia). Ob- from an aireraft flying over or in i the
server beleived that he heard the sound of vicinity of the American Oil Co.
receeding a/o imnediataly aftar the objects
penetrated the roof.
AISOP Form 5 (15 Oct 54)

Saap
NherdeatneHr 4dard 1od nod
falphabout8o poondgry ROLOTO ENGTOSURE
Sourcontdt Ratpolcc71 5andaon 916 55
g1ay. 55 Baltnoro police ploked u t trorobidota and calaea Ah Ragcaceh
nt Gammano mo.ade apreLanay dnveattoaconandgthan Contao
2
UNCLRSSAEET

investigation (sae BorosURe/2
Poste
Radid Car Roport
PrgLimimary Pnvastigation ARDe W/Attachd Momo
Baltimore SunArtica
CXSSIFICATION

8

The objedta appeared to be Composed or-cast Tbn Oranisr-ttai, i
T5
AL become. rien Shatplybrokens Tnaa decond pdeca Mas dierg. anont one gus er inoh
not caused py the taling aotionror ary other actton- rerent dt thg sccond piee not caused py the talngtaotionror any other actlon-Tereat df thg Beco.d pecd
cular piece and the vhole had beon Consthrueted ae tic,piedasy diegObfdcd . daaeter
would have been about 2l indhes: tts wenghtr shout B0 pounds
3eAnewapaper reporter (f and photosrapher (rame inaom) o
the BaLtimore levs Rost newapaper reonested a picbe ottha Obecte Ath Captein
RYAN the Latter, dechimed,Tne niavopaper Proplevere rold the  Wagtan Revnts pre
ment voold be aasued byethe Depau enr-ot thaAr Fonceg Tashdngron, D- Ge!reNhen
ofricer at Headeuanters, Arbe, for Lonther relenset- 1
accouplrshed/Asummary orgthe PoLica GantihnLe-Stnoangs 1S82V0881010
Inveatigation disclosea thr Grd paecee of uacareh lreay Gegopdd
OTETHIS-DOCUMENT SANDZASAMENDED.TTSR
a
INTELLIGENCE USA
(GTACSIFECATK

RHER83-B26026 AnSS 3H4TOB35
Inolosurc 2 to Part To Contd.
dound preoring matoial (ondascraibed thdkondas and matanala had e-
upnig
dHostocttho BaLhimore-ashinetan Epresswayntho1s0o Blool
reasonablo diatancg of the bnelding (thinlding perhand the objecta Dighy ahaye been
feet Crowthe Soutr,Sne,
to Ba1timore and shouid aave in the Lte artormoon  (4oTev 1955  It ras
pals involved at the Amerdcan OfE Company butidang wnerein the Inathant Occured
C-Capti RVAN oalcd Captan F A-Dro S Sortnn DishctPoce St.Bon
Inningrat approdmately16oo Honner doYay 1955  1t Yas dlsg asked.o the PoLed
ptain fit he thought it possable the perBonnel AnvoLved-at tho Amezican ob Company
Interviewng the tro Poliee Orticerd Mho made thae caa the Potcd Canradin seomdo ralod
SDOCUNEN 2
EREPRODUCET
INIEZLI
UNCLASAED

1 .:
INVESPIGATION AND PINAL EVALUATION
ATIAE-5
L L

Atrentypoumd netal bar had the polica shampeo Jaet iaeht
through thd root and gccond Nloor of en ot,plant- oirice Satinday and cand to nast
on tha Cirst dloor
Shows Chuink
Russell Street.
Lead
A sergeant-ecamined at and coun give only-this eplanation-
sancar
Inclosuroto Par-Fo
PARTS-OR PLYCNG SATGER
RUECORA
E

Capt8LaUSAE
LOTE-THIS DOCINENTCONTANSIRFORMATIO
ASAMENDED ITSTR
BEREPROOLCED ARBY On HERTHANUNITEDSTATESURTORSE/AGENCIE
OEUEDUNTN
IC

i: !
-—
I
4602D INITIAL AND FOLLON-UP INVESTIG.TION
-

AGTION
19 M15315. 45- 19M253 18 33
725
RA153 1.Atto
UPD1S1 TYE115MEA395 2
3.(tinig-2
RR JEDWP 4pfile
DE JEPME 17
R 1816502 R 1816532
FM COMDR 47OSTH DW MCGUIRE AFB NJ FM COMDR 47OSTH DW MCGUIRE AFB NJ
TO AIR T TO AIR TECHN WRIGHT PATTERSON AFB WRIGHT PATTERSON AFB OHIO
BT
HARDIN AND CAPT HANSON CMM AND UFOB REPORT BALTIMORE POLICE WERE
CONTACTED AND REQ TO CHECK ALL JUNK YARDS IN ARE FOR POS IBLE
YARD CLN MR REPORTED NO PERATIONS ON THAT
OF KLAFF AND ALSO
REPORTS NO IONS THAT DAY F PD END.
BT
19/1730Z MAY JEPME

-
. -

UNCLASSIE
(CLASSIFICATION) (SECURITY INFORMATION When fi!led in)
COUNTRY OF ORIGIN REPORT NO. (Loave blank)
iA 3H-UFCR-5-55
AIR INTELLIGENCE INFORMATION REPORT
AREA REPORT CONCERNS
BALIZAOKE, NARDLAD
AGENCY OF ORIGIN DATE OF REPORT
ht 2-1, 46031 AED
SOURCE OF INFORMATION DATE OF INFORMATION
3 and othera 7
PREPARING OFFICER EVALUATION
CUESEA C. MUSCN, CESEAC. MUSCN,
REFErences (Control nunber, directire, preriona report, ete., as applicable) REFerences (Control nunaber, directire, preriona report, etc., as applicable)
Talephone convgroation between lajor Nolephone convoroation between Aajor A As and Caotr n Capo- anson
1004 121142955. 10 04 1211y1955.
SUBJECT
U7C9 02C9
Suary Entr conce summay ofrepor.i sgifennce inl one-sentence parag.List incosus  lowere.Bin tet ofeport on F For a) Suary Entr conce summay ofepor.i sgifennce inl one-sentence parag.List incosus  lowere.Bin tet ofreport on F For a.)
I. CCTAS: CCTAS;
PAME ALA De sur  ond of incident by
Amerioan Oil Gompany, 1500 LStreob, Baltinore,
Marrhed.
PART Pro: Guppl-mantary-Investigative Ifforta
PaRt TirB: Commenta of Preparing Gr1osr
I, stastt:, An mnidentified dlging objeet penetratad the roof of the Amardion
Sal Canpaay, Baltimore, Maryland (G3pK 2ol) at 7/18a6 01lay, The in2ommation
contained in this report was fran ths person observing the objeet oad fron an
IIt. IwstraarcRs: Gaptain Shaeter B. Hanson
Chlar
CIESTR 3. HANSCI CIESTR 3. HANSCI
,Captain, ,Captain, CSAF CSAS
Orficer in Sharge Gfficer in Sharge
5 INCLS. INCLS. (See individual 2arts)
(See individual Zarss)
DISTRIBUTION BY ORIGINATOR
WARNING: Thin document contains inlormation alffecting the national defense ol the United Statos within the meaning ol the Eapio-
naga Laws, Title 18, U. S. C., Section 793 and 794. Its transmission or tha revelation of its contents in any manner to an unauthorised
person is prohibited by law. It mnay not be reproduced in whols or in part, by other than United States Air Force Agencins, except by
permnision ol the Directorol Intelligencn,USAP.
AF 1 UCT 2 112 REPLACES AF FORM 1I2PART I. I JUN AB, WHICH MAY BE USED CLASSIFICATION (SECURITY INFORMATION when filled in)
UNCLASSIPIED 16-50569-3 U. S. GOVERNMENT PRINTING OPFICE

I
AF FORM 112—PART II UNCLASSIFIED
APPROVED 1 JUNE 1948 (CLASSIFICATION)
AIR INTELLIGENCE INFORMATION REPORT
FROM (Agency) REPORT NO.
Part One
Flight 3-H, 4602d AlSS 3H-JPCB-5-55 PAGE 2 OF 9 PAGES
I. SOURCE:
Addresss
Maryland
Aget Appraximately 40
Cooupation: Supervisor of Services, Anarican Oil Company
Education: High sohool
Qualification: None
II. RELIABILITY: rious, intelligent individual who bolds -
e. responsible poeltion vith a Large on, His stataments and observatiens
ars considered valdd and true.
,roundad vith approxinately
a 2 to 2 1/2 inch dianater: The s second piece apprcxinately 5 1/4 pounds together
they appeared to be a vedge-shaped pisce of a ciroular piscs of metal, similar to a
manhels eover or wheel. It is estimated that the entire "pheel" if found would
waigh about 80 pounds. Refer to ENCLOSURE #l. .
SOURce eontacted Baltimore police on 7 May 55 and again on 9 May 55. M
9 May 55 Baltimors palice picked up the tao objects and called Aiz Research and
Development Conmand who made a preliminary investigatien and then contaeted this
organization. Reparts made by police and Air Research and Development Cammand are
cantained in PArr TaO of this report.
.
1 Incl
UFOB Metal Object
i
NOTE: THIS DOCUMENT CONTAINS INFORMATION AFFECTING THE NATIONAL DEFENSE OF THE UNITED STATES WITHIN THE MEANING OF THE ESPIONAGE ACT, 5O U. S. C.-
IT MAY NOT BE REPRODUCED IN WHOLE OR IN PART, BY OTHER THAN UNITED STATES AIR FORCE AGENCIES, EXCEPT BY PERMISSION OF THE DIRECTOR OF 3I AND 3?, AS AMENDED. ITS TRANSMISSION OR THE REVELATION OF ITS CONTENTS IN ANY MANNER TO AN UNAUTHORIZED PERSON IS PROHIBITED BY LAW.
INTELLIGENCE, USAF.
UNCLASSIFIED
(CLASSIFICATION) 16-55570-1 U. S, GOVERNMENT PRINTING OFFICE
"'

eunsylvania for
3.Captain
ceived the Mirst repert (see IacL SURE #1) fran the rodio dar, He-stated that there
als no eplosion
piece or nachinery being murled,through the air. Further, the object, although
Captain RlAl, air Resesroh andd
E42).
5. Baltimars stories on tha indident on lo May 1955.
Post.
4 Incls
¥2 Radio Car Report
Preliminary Investigation, ARDc W/Attachd Memo
3 Baltimore Sun Artical
Baltimore News-Post Artical
22 t --2
IT MAY NOT BE REPRODUCED IN WHOLE OR IN PART, BY OTHER THAN UNITED STATES AIR FORCE AGENCIES, EXCEPT BY PERMISSION OF THE DIRECTOR OF
INTELLIGENCE, USAF.
UNCLASSIFIED
(CLASSIFICATION) 10-55570-1 U. 5. GOVERNMENT PRINTING OFFICE

AF FORM 112PART II UNCLASSIFIED
APPROVED 1 JUNE 1948 (CLASSIFICATION)
AIR INTELLIGENCE INFORMATION REPORT
FROM (lgency) REPORT NO. Part Two
Flight 3-H, 4602d AISS 3-H-FOB-5-55 PAGE 4 OF PAGES
Inclosur Part Two
POLICE DEPARTMENT OFLAN 3Y
City of Baltimore DEPORT a914
Southern DISTRET May 9 1.955
Captain Frank A. Deeas: 46
Sirt Badio Car #81 l received a call to 1500 sx
12:05M
.1255
F.
- to Rind
out who it got there.
hole through it, to the first floor.
The building is insured. Tho building is insured.
Respectrully, Respectrul
Bail. #4
Post 3
Time 12:05 PM
Place i5co Russell St.
TRUE COPY
ChebSan
CHESTER B. HANSON
Captain, USAF
NOTE: THIS DOCUMENT CONTAINS INFORMATION AFFECTING THE NATIONAL DEFENSE OF THE UNITED STATES WITHIN THE MEANING OF THE ESPIONAGE ACT, SO U. S. C.— 31 AND 32. AS AMENDED. ITS TRANSMISSION OR THE REVELATION OF ITS CONTENTS IN ANY MANNER TO AN UNAUTHORIZED PERSON IS PROHIBITED BY LAW.
IT MAY NOT BE REPRODUCED IN WHOLE OR IN PART, BY OTHER THAN UNITED STATES AIR FORCE AGENCIES, EXCEPT BY PERMISSION OF THE DIRECTOR OF INTELLIGENCE, USAF.
UNCLASSIPIED
(CLASSIFICATION) 16-55670-1 POINFIMS OFFICE

AF FORM 112—PART 1I UNCLASSIFIED
APPROVED.1 JUNE 1948 (CLASSIFICATION)
AIR INTELLIGENCE INFORMATION REPORT
FROM (Agency) REPORT NO.
Part Two
Plight 3-4, 4602d AnSS 3-H-FCB-5-55 PAGE OF 9 PAGES
5
Inclosure 2 to Part Two
AIR RESEARCH AND DEVEICRMENT COMAND
Baltimore, Maryland
MEMO FCR RECCRD: 10 May 1955
SUBJECT: Unidentiried Cbject
L. Caotain RxAn, Aasistant Chier, RDroRP, received a phone oall from Captain
information contained in attached Nano for Record, y 1955, subject: Cbjeats
Pell Through Roof of Buildingy aDep.
Captain RiAN departed for the Southern Distriot
Polics Station, after conferring vith Nr regarding the visit. Captain RIAN
Beople "7er9 told that Gaptain RYan's pre-
cence was part of the routine Alr Force investigation of natters concerning objeots
flying through the air or falling fron the Air, and that any orficial Air Farcs state-
neat vould be dsaned by the Department of the Air Forcs, Hashdngtan, D. O." When
piereed the roof' of the American Oil Compary building at the time and ux oder the eir-
:e aR
NOTE: THIS DOCUMEN F CONTAINS INFORMATION AFFECTING THE NATIONAL DEFENSE OF THE UNITED STATES WITHIN THE MEANING OF THE ESPIONAGE ACT, SO U. S. C.-
3I AND 32. AS AMENDED. ITS TRANSMISSION OR THE REVELATION OF ITS CONTENTS IN ANY MANNER TO AN UNAUTHORIZED PERSON IS PROHIBITED BY LAW.
IT MAY NOT BE REPRODUCED IN WHOLE OR IN PART, BY OTHER THAN UNITED STATES AIR FORCE AGENCIES, EXCEPT BY PERMISSION OF THE DIRECTOR OF
INTELLIGENCE, USAF.
UNCLASSIFIED
(CLASSIFICATION) 16--55570-1 U. S. GOVENNNENT PRINTING OFFICE
.

R INTELLIGENCE EVALUATION RECOR
TO: AIR INTELLIGENCE INFORMATION REPORT NUMSER DATED
isadquartera 3U-UCB-5-55 12 lny 55
4602nd ARSS (ADC) SOURCE OF REPorT (Air Attache, Command, etc.)
Ent Air Force 2as0 Flt 311, 4602nd AICS, Nehulre ArB, Mow Jersey
Colo INTELLIGENCE REPORT PREPARED BY (NAMe of ofFiCET)
Captain Chester D, Ehason, Ote, Flt 3-A
USABILITY OF REPORT VALIDITY OF INFORMATION FULFILLMENT OF REQUIREMENT
2 EXCELLENT x CONFIRMED X COMPLETE
SPECIFIC PROBABLY TRUE PARTIAL
USABLE POSSIBLY TRUE SLIGHT
TOO GENERAL DOUBTFUL
CANNOT JUDGE
conMents (In narrative style, expand on your evaluation as checked above. Your comments, guidance and helpful criticism are
aopreciated by collectors. Carefully prepared and detailed Evaluation Records will improve the quality of reporting and
provide you with intelligence information of higher quality.)
L. The two objeets, whieh aecowpandad tha report, wrere claely exaained by
both Atte personnel and soveral cetallurgists fron iron forsing end caatiag con-
panies in Dayton, Chio. Following is the result of the analyals:
B. Charecterlatles or the objecto B. Charectariaties of the objecto
(1) The two objeets, weighing 13 3/4 and 5 l/ lba ara doftnltely (1) the two objacts, weighing 13 3/4 and 5 l/ lba ara dofialtely
of a gaod quality caat iron containdag less thaa 2$ oillcon in coupoaition, of a gaod quality cast iron containdog less than 2$ oilicon in couposition.
variety and trnces of corrosion indieste it had been inatalled naar water or ia
soue other huaid location. soue other huaid location.
ccann vesoels, stoau ragulating eppratus aud/or vater and gewernce eystess..
to contain a considerable naount corrodion, guggeatiog that a forrar "mand)
asaanbly was once Iwtnllal thare.
b. Probable cause of the incident - It in very durrlenit to deternine vont
cawed the ineldent; however, aftor consideration of various possibilities, the
follwiag conelusiom vere attainei:
(1) It io very unlikely that amy aircatt in the aree at the tiae
been
eccidanatly droyped from an airerart, it vould have romnined in one place until

taet frow the South Sido.
tant to have these
included in the repdrt, Gaotain RxAn thanked the Gaptain for his co-operation and
stated that he. as vell as the investigative officer vould call at about léco Mours or
shortly thereatter.
7. Cpon arrival of Captain Hanscn, this Meno, as well as othar jertineht Cpon arrival of Captain HanScn, this Mano, as well as othar jertineht
materials alll be turned over to him for ccapletion of the investigation. (Captain)
EEPORTING (CFPCER: EEPORTING CFPICER:
/s/t/uRHAEL /s/t/UIDHAEL RYAN
APPROVED: Captain, USAP
fB/t/EARLEX T.DALI
Major, USA 2
PX:
Cheslfa
CHESTER B HARSON
Ceptain, SAY
NOTE: THIS DOCUMENT CONTAINS INFORMATION AFFECTING THE NATIONAL DEFENSE OF THE UNITED STATES WITHIN THE MEANING OF THE ESPIONAGE ACT, SO U. S. C.—
31 AND 32, AS AMENDED. ITS TRANSMISSION OR THE REVELATION OF ITS CONTENTS IN ANY MANNER TO AN UNAUTHORIZED PERSON IS PROHIBITED BY LAW.
IT MAY NOT BE REPRODUCED IN WHOLE OR IN PART, BY OTHER THAN UNITED STATES AIR FORCE AGENCIES, EXCEPT BY PERMISSION OF THE DIRECTOR OF INTELLIGENCE, USAF.
UNELASSIEIED
(CLASSIFICATION) 18-55570-1 U. S. GOVERNMENY PRINTING OFPICE
.

FROM (Agency) REPORT NO.
Part Two
Plight d, 460ad AnsS 3-H-UFCB-3-35 PAGE 7 OF 9 PAGES
Inclosure 2 to Part Two, Attached Memo.
9May 55
AGMO FOR THE REDCRD: 1600
SUBEECT: Cojeets Fall Through Roof of Building
3e
At lboo, this date, received call ran kr amployee as
blook, South
Charies Strset. (Carner of Patapsico and Austin). Phona HUlberry 5-1600 cxt 269.
n.e.
Aneriean
The oojects dimensions:
anon
Notifiad Capt RYAN, RDTOP, ext 352, at 1510.
/a/t/ Grine, EDYP
TRUE COPK
Cheyan Chee
CHESTER B HANSCN CHESTER B HANSCN
Captain, USAV Captsin, USAP
NOTE: THIS DOCUMENT CONTAINS INFORMATION AFFECTING THE NATIONAL DEFENSE OF THE UNITED STATES WITHIN THE MEANING OF THE ESPIONAGE ACT, SO U. S. C. -
3I AND 32. AS AMENDED. ITS TRANSMISSION OR THE REVELATION OF ITS CONTENTS IN ANY MANNER TO AN UNAUTHORIZED PERSON IS PRCHIBITED BY LAW.
IT MAY NOT BE REPRODUCED IN WHOLE OR IN PART, BY OTHER THAN UNITED STATES AIR FORCE AGENCIES, EXCEPT BY PERMISSION OF THE DIRECTOR OF
INTELLIGENCE, USAF.
UNCLASSIFIED
(CLASSIFICATION) 16--53570-1 GOVERNNY INTING OFFICE
.

A twanty-pound metal dar had the police stumped last night.,
The pipe, solid netal about two inches in diameter and is inches long, crashed
through the roof and second floor of an oil plant office Saturday and 'cane to rest
on the Pirst Ploor.
A
Shows Chauk
station. we're
calling in experts to look at 'en, but the investigation is not doing much good.
Weighing about 20 pounds, , the huiks of metal 1 plowed through the roof at the
ofrice in the 15oo block Russell Street Saturday
but didn't hurt anyone,
One piecs is about
holesnthooenien
make them fit,
An Air Parce exoert
that auch.' He said they didn't appeer to be fron any type of airplane he bas seen.
Certain there mas no exolosion in that area which might have hurled the chanka
into the oil coupany affics on Saturday, police still vent on the theory that the
metal pisces came Aram the air - somehow.
Chean
TROE COPX:
CDSTER BHANSN. CantSin.USAF
NOTE: THIS DOCUMENT CONTAINS INFORMATION AFFECTING THE NATIONAL DEFENSE OF THE UNITED STATES WITHIN THE MEANING OF THE ESPIONAGE ACT, 5O U. S. C. —
3I AND 32, AS AMENDED. ITS TRANSMISSION OR THE REVELATION OF ITS CONTENTS IN ANY MANNER TO AN UNAUTHORIZED PERSON IS PROHIBITED BY LAW.
IT MAY NOT BE REPRODUCED IN WHOLE OR IN PART, BY OTHER THAN UNITED STATES AIR FORCE AGENCIES, EXCEPT BY PERMISSION OF THE DIRECTOR OF
INTELLIGENCE, USAF.
UNCLASSIEIED
(CLASSIFICATION) 18-55570-1 U. 5. GOVERNMENY POINTING OFFICE

T   h ,
SUSJECT NAMS T85C
FRCM SUSPENSE OATE NUM3ER
DATE TYPE
275 45024 A159 13
FILE DESIGNATION
renton,N.j.
SUMMARY
Whr, 454 1) May 55, Dubjr
ad a ploaee of motal ad 3 pioges of motal nola Roport
DO'NOT REMOVE'THIS COPY DO"NOT
REMOVE'THIS COPY
AM0TO. ANY TO . TO
TO TO
DATE DATE
15my 55 DATE DATE DATE
Ad REPLIED OR INDORSED TO FILED (Place) FILED (PlaCo)
OTHER ACTION
.

-
nne it being used
as part the aircrart
C. the roof, second
lon the metal would have entered the building in a more lateral direction
d. The fact that Mr. heard an aircraft leaving the
area at the time of the incident helps confirm this theory
2. All contacted. including Mr.S and
believe that the metal
CHESTER B HANSON
Captain, USAF
.
NOTE: THIS DOCUMENT CONTAINS INFORMATION AFFECTING THE NATIONAL. DEFENSE OF THE UNITED STATES WITHIN THE MEANING OF THE ESPIONAGE ACT, 5O U. S. C.-
3I AND 32, AS AMENDED. ITS TRANSMISSION OR THE REVELATION OF ITS CONTENTS IN ANY MANNER TO AN UNAUTHORIZED PERSON IS PROHIBITED BY LAW.
IT MAY NOT BE REPRODUCED IN WHOLE OR IN PART. BY OTHER THAN UNITED STATES AIR FORCE AGENCIES, EXCEPT BY PERMISSION OF THE DIRECTOR OF
INTELLIGENCE, USAF.
UNCLASSIFIETS
(CLASSIFICATION) 18-55570-1 U.5. GOYERNWENT "OFFICE

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R INTELLIGENCE EVALUATION RECO
TO: AIR INTELLIGENCE INFORMATION REPORT NUMBER DATED
SOURCE OF REPort (Air Attache, Command, ete.)
INTELLIGENCE REPORT PREPARED BY (Name of officer)
USABILITY OF REPORT VALIDITY OF INFORMATION FULFILLMENT OF REQUIREMENT
EXCELLENT CONFIRMED COMPLETE
SPECIFIC PROBABLY TRUE PARTIAL
USABLE POSSIBLY TRUE SLIGHT
TOO GENERAL DOUBTFUL
CANNOT JUDGE
coMMenrs (In narrative style, expand on your evaluation as checked above. Your comments, guidance and helpful criticism are
appteciated by collectors. Carefully rrepared and detailed Evaluation Records will improve the quality of reporting and
provide you with intelligence information of higher quality.)
wth the rot ot the bu Thare Ware nd othar ieet dnd
(2) A mrukatar vould iave to rouseas a great sound of thysical
ntrengtd to have throw the ohjeeta up aral/or tha theroor.
3) 3 the cbject had been rars of a ramlrios cachanisa of a mnasina
ehe cbvios vartleal directisn, (Uniess in the case a a riehocaet,)
() Tha cosh fanstale explanation attalnel thm aar for the phnoecon
is Mknt A loanl sman dog c
cnwaed the dhleat to be "esddly-riakel" tnto the eir and an ashed Shrown the col

…
RAAAAE MAANANAN
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16 - 31 MAY 1955 SIGHTINGS
DATE LOCATION OBSERVERS EVALUATION
16 Winchester, Virginia Insufficient Data
17 Mojave, California Aircraft
17 San Francisco, California Astro (JUPITER)
17 McDill AFB, Florida (CASE MISSING) Other (SEARCHLIGHT)
13 Niegara Falls, New York Military Astro (METEOR)
13 Los Angeles, California Insufricient Data
19 Berkeley, California Insufficient Data
19 Ven Nuys, California Aircraft
19 Alameda, California Balloon
19 Kentfield, California Astro (METEOR)
19 San Gabriel, California IN FOLIAINE- Balloon
20 Alexandria, Minnesota Civilian (PHYS S)POLA Other (HARD COAL)
20 Tokyo, Japan Military Insufficient Data
20 Orville, California Insufficient Data
20 Yuma, Arizona Astro (METEOR Astro (METEOR)
20 20 LaGuardia Airport, New York (CASE MISSING) Civilian LaGuardia Airport, New York (CASE MISSING) Civilian Aircraft Aircraft
20 20 Brooklyn, New York Brooklyn, New York Aircraft Aircraft
20 20 Malvern, Pennsylvania Aircraft Aircraft
21 Norton, AFB, California Military Military Insufficient Data Insufficient Data
23 Elyria, Ohio Elyria, Ohio Aircraft
23 Cheyenne, Wyoming Military UNIDENTIFIED
24 Long Island, New York Insufficient Data Insufficient Data
25 London, England London, England Other (PSYCHOLOCICAL)
Chitose AB, Japan AB, Japan Military Aircraft
Euclid, Chio Euclid, Ohio Balloon
Clearfield, Pennsylvania Clearfield, Pennsylvania Astro (ALTAIR) Astro (AlTaIR)
27 Englewood, Ohic PHYS FOCDR Other (SLAG)
23 Vabuska, Nevada Astro (METEOR)
29 Colorado Springs, Colorado (CASE MISsING) Multi Balloon
29 Uraguay Insufficient Data
ADDITIONAL REPORTED SIGHTINGS (NOT CASES)
DATE LOCATION SOURCE EVALUATION
13 Los Angeles, California (DHM)

ywroyrtate detadlr drwired by thta Conter tn cozes Arvolring actnal -
0V$21 nee, to favthar Anrorention io doslred. A wot or photographs nre atlached 2or-
yeur Fotantton,
DATE AGENCY AND OFFICE ANALYST (Signature)
ATZARS, A hoical Entelligence Canter
025y55 Atr Porco O Cant Cai
AF FORM 1 OCT 52 112b PREVIOUS EDITION OF THIS FORM MAY BE USED. CLASsIFICATIO" (SECURITY INFORMATION whEN filled in)
GPO : 1952 O--201361

APLAE-5 FOLLOM-UP LNVESTIGATION
CASE - 7 May 1955, Baltimore, Maryland 17 Nay 1955
REPORT -
4602d AIsS, MoGuire aFB, New Jersey.
ACTION - Upon dircction fron Capt. C. A. Hardin, ArlaE-5, the undorsigned aixman
obtained a telephone account nuaber and placed a call to Capt, lanson
at McGuire ArB. No aymond 42100, Ext 2108 3. Informed Capt. Hansen of
the results of the preliminary investigation e equested he check for
local scrap-iron companies within a mile radius of the site or the
incident. Also asked him to inguire on "skull-cracking" operations,
if any, conducted on 7 lay l955. Capt. lanson readily agreed and stated
he would obtain and forward the requested information via teletype.
He added that be kney of scveral_such connanies witlin reasonable
distance from the site of the incident. Capt. llanson requested that
ATIAE-5 prepare and forward a copy of AF Form 1l2b to the L6o2d Hgs
upon final analysis. This will be acconplished pending results
of Capt. Hanson's follow-up check of the area. of Capt. Hanson's follow-up check of the area.
ld
T/Sgt. Drepperd
FINAL EVALUATION FINAL EVALUATICN
-23 MAy55- LNKNOWN/OTHER -
OR
OTHER-
MAN-MADE CAST-IRON.
UNKNOWN-
How InerdeNt OCCURED, PRESUMAblY

with two metallic objects as inclosures. The undersigned airman
was assigned the task of interviewing several persons from Ircn &
Steel Companies in Dayton, Ohio in an attempt ;to identify the two
objects.
INTERVIENS ACCOMPLISHED -
1. l400 Hrs, 16 Nay 1955 - Visited the Dayton Forging &lleat Treating
Company and discussed the objects with Mr.
M with the company. stated that the objects
were definitely a fairly good quality of cast iron, after conducting
some routine tests ( , a spark test and magnetic observations).
He further indicated that in his, t s), opinion, the two
pieces were, at one time, joined and were initially part of a balance
wheel or valve control wheel. Mr. also pointed out that in
his estimation, the pieces were Nor i0s some type of flywheel due
to apparent construction and the evident outer rim smoothness of the
pipe-like piece. He explained that the smooth area indicated constant
ware from contact with either human hands or some soft material.
reliabilitv and charncter coula
all questions, (his answ
and his ethusiasm in extending assistance. It was obvious that Mr.
2. 1455 Hrs, 16 May 1955 - Discussed the objects in question with
of the Kopelove Iron & Metal Campany, Dayton, Ohio.
Mr.
readily answered all questions asked of him. Mr. Cs statenents
and conclusions varied very little fron those obtained at the first
interview with Mr. Mr. is the with the
company.

und on
ocean vessels. Moreover, Mr. stated that pieces were
fron an old type of wheel made years ago, and that similiar control
devices of today are usually lighber in weight and advarced in design.
He then confirmed the composition of the matorial as being cast iron,
of rather good quality with an estimation of less than 2% silicon
in materiel content.
Mr. also advanced the theory that the objects in question
crashed throu'h the buildine in Baltimore as a result of "Skulb-
cracking" operations probably being conducted at a local scrap yard
within a radius of a mile of the site of the incident. He
explained that during his experience he had seen many metallic
pieces fly through
Mr. eppeared to be a very well educated gentleman, as
well as having the practical background experience which enabled him
to express himself fluently and thoroughly when asked specific
questions nterviewer.
4. 1555 Hrs, 16 May 1955 - Phoned in above information to Capt. to Capt.
Hardin, Project Monitor. Hardin. Pro ject Monitor.
CONCLUSION
1. After reviewing the aformentioned statements and opinions
the incident ca surmed up as follows;
A. Characteristies of
(1). The two objects, weighing 13 3/4 and 5 1/4 lbs, are
definitely a good quality cast iron.
(2). From close examination it was found that the casting is
of an old variety and traces of corrosion indicate it had been
installed near water or in some other hunid location.
(3). The objects are probably from a former control
wheel.
(4). The hole located at the break on the pipe-like piece
was found to contain a considerable amount of corrosion, suggesting
that a former "handle-type" assembly was once installed there.
Years ago it was the practice of men operating this type of epgaratus

physical strength to have thrown it up the roof.
of a passing train, they would nave entered the building in a
more lateral direction, rather than the obvious vertical direction
they fell in.
(4). Based upon close examination of the report and as a
result of the interviews conductod, it is felt by the reporting
airman that the incident occured when a local serap-iron company
was conducting "skull-eracking" operations and the objects was conducting "skull- cracking" operations and the objects
"tideley-winked" into the air and crashed through the roof of the "tideley-winked" 1 he air and crashed through the roof of the
building. Note: Skull-cracking is the breaking up of machinery and building. Note: Skull-cracking is the breaking up of machinery , and
other metallic objects into small pieees to send back for smoltering other metallic objects into small pieees to send back fo: oltering
and re-casting.
RECOMMENDATION
In line with conclusion (4) above, it is recommended that Capt. In line with conclusion (4) above, it is recommended that Capt.
C. B. Hanson, Comdr Flt 3-H, be contacted and requested to check
on the locations of scrap-iron companies situated within a
mile radius of the American Oil Company butlding. mile radius of the American Oil Company butlding. Further request request
Capt. Hanson inquire as to possible skull-cracking .71 operations
conducted by any such conpanies on 7 May 1955.
Allest V. huppered
ALBERT W. DREPPERD
T/SCT. USAF
Assistant Project Bluebook
Monitor