PROJECT BLUE BOOK

D RECORDAED icident #70A
UNCLASSIFIE
ATIC NO. DATE OF INFO 6 Aug 47
AF HO. LOCATION Philadelphia,Penn.
REPORP NO. SOURCE Retired Cop
TATE OF PEPORT DATE IN TO ATIC
TRE OF SIEFTING 2245 EST COLOR
Entimated
SHAPT Big Firecrecker SPEED Hich Measured
Estinv.t
SIZE Large Large ALTITUDE M asured Masured
COURSF 180 degrees S LENGTH OF TME: OBSERVED Gene in SPlit Sec LENGTH OF TIME: OBSERVED_Gone in SPlit Sec
, NO, IN GROUP NO. IN GROUP 1 TYPF OF OBSERVATION GroUnd TYPF OF OBSERVATION Ground
LOUND MANLUVERS MANEUVERS
PIHOTOS SKETCHES
Tomporary ATIC Form 329 Boorary AgTc Eom 320 UNCLASSIFIED
(2 Jan 52)

UNCLASSIFIED
CHECK-LIST - UNIDENTIFIED FLYING OBJECTS
1. Date 6 Aug 47 Incidont # 69a
2. Time2230-2245
3. Location Philadelphia, Pa.
4. Name of observer Miss
5. Occupation of obsorver Euployed by Pressman & Gutman Co., Inc.
6. Address of-observor , Phila, Pa.
7. Place ofiobservation St., Phila, Pa.
8. Numbor of objocts 1
9. Distaneo of object from observer N/S
10. Timo in sight N/S
ll. Altitude Altitude N/S
12.Speed 12. Speed N/S N/S
13.D 13. Direction of flight N/S N/S
1h. Tactics 14. Tactics N/S
15. Sound slight buzzing sound
16. Sizo N/S 16. Sizo N/S
17. Color 17.0 Color N/S
18. Shape N/S
19. Odor dotected
20。 Apparent construction N/S
21. Exhaust trails N/S
Woathor conditions N/5
23. Effoct on clouds N/3 UNCLASSIFIED
24. Sketches or photographs None
Nanner of disappearande N/3
20. Remarks: Miss was sitting on the steps of Miss s home
the evening of 6 Aug 47 around 10:45 P. M. engaged in conversation when
(over)
148

a former pilot of B-24 in the Army Air Corps advised
that he was sitting on the steps of hismme around l0:45 P. M. the night
of Aug 6. 1947 and that his neighbors, the family, were also sitting
on their steps. All parties were fecing east. noticed an object
which emitted a bluish-white flame pass quickly thru the air. It was
traveling HE to SW. Using his experience In the Army Air Corps he estimated
the speed as between 400 to 500 MPH. The object did not lose elevation
and left either a smoke or condensation trail in its former path. The
vapor lasted for about 2 seconds. A hissing sound accompanied the passing.
The sound was moderate and not nearly as loud as that occasioned by a
rocket ship.
G
161

CHECK-LIST - UNIDENTIFIED FLYING OBJECTS UNCLASSIFIED
1. Date 647 Incidont # 70
2. Time Around 2245
3. Location Philsdelphia, Pa
4. Name of observer
5. Occupation of obporvor Insurance agent (former B-24 pilot)
6. Address of obsorvor ., Philadelphia, Pa.
7. Placo of observetion above address
8. Numbor of objocts 1
9. Distance of object from observer /S
10. Timo in sight 3/s
l1. Altitude 1.000 - 3000 ft
12. Speed between 400-500 MPH between 400-500 MPH
13. Direction of flight from N to S 13. Direction of flight from  to SW
14.Tactics 14. Tactics N/S
15. Soumd 15. Sound hissing
16. Size 3/s
17. Color n/s
18.8 Shapo 3/s
19.0 Odor dotected /S
20. Apparent construction /s
21.E Exhaust trails Smoke or condensation - also emitted bluish white flame
22. Woather conditions Cleer
23, Effoct on clouds 3/3
SSIFIED
2h.s Sketches or photographs None
25. Manner of disappearance /s
25,Ramarks: (Over)

Around l0:l5 on the might of 6 Ang and his wife were cirting
on the steps oi their home when moticed an cbject resembling (to him)
a giant firecracker wnich passed quickly thru the air. He heard no noise
and the object co letely passed from view in a southerly direction within
a split second. It left a fiery trail for about l00 feet. The object
did not lose altitude so he wes sure it was not falling star.
NOTE: It is to be noted that the and the live in NE Phila,
near Oxforu Circle (about 10 miles removed from the residence of Miss
- Inc 69) It is further noted that the observations of Miss
and the roughly correspond. All seemed
reliable and were not the t pes to seek publicity or to spread rumors.
Ur
1153
1/1/

UNCLASSIFIED
CHECK-LIST - UNIDENTIFIED FLYING OBJECTS
1. Dato 6 Ang 47 Incident # 70A
2. Time Around 2245
3. Location Philadelphia, Pa.
4. Name of observer
5. Occupation of obsorver retired police officer
6. Address of observer
7. Placo of observation above
8. Number of objocts 1
9. Distanee of objoct from observer N/s
10. Timo in sight gone in a split second
ll. Altitude 11. Altitude N/S N/S
12,Speed 12. Speed Stix Very rapid Smtix Very rapid
13. Direction of flight 13. Diroction of flight South
1h. Tactics 14. Tactics N/S
15. Sourd No noise
16. Sizo 16. Size large
17. Color 17. Color N/S
18. Shape "like giant firecracker"
19.0 Odor detected None
20. Apparent construction N/S
Exhaust trails "fiery trail for about 100 ft"
22, Woather conditions clear
23. Effoct.on clouds N/S
21。 Skotches or photographs N,ne
N/S UNCLASSIFIED
Hanner of disappharance
Remarks: (over)
152

Dr HYNEK'S EVALUATIONS EXTRACTED FROM PROJECT GRUDGE REPORT.
INCILENT INDEA
1. Astronomical
a. Eigh probability:
26,27，30，31，32，33,34，48，49,59，60，66,6970,94,
95,96,97,98,101,102,103,104,116,119,132,136,140,
147,148,158,174,184,185,187,197,203,204,208,216,
219,238.
b。 kair or low probability:
访19，20，23，24，28，35，35，46，50，63，67，80。82。93，1C0。
112, 120,121,129, 130,144, 153, 165,166, 167, 175,192,
199,202，205,220，230,240.
2. Mon-astrononical tut suggestive of other explanations 2. Non-astrononical tut suggestive of other explanations
a. a。 Balloons or ordinary airoraft:
#3,11,22,41,42,53，54,73，81,83,91。92,113,114,115, #3，11,22,41,42，53，54,73，81,83,91。92,113,114,115,
126,131, 138,141,145,155, 156, 157,159,160, 161, 163, 126, 131, 138,141, 145,155,156,157,159,160,161, 163,
169,171,173,178,180,182,188,190,194,195,196,198,
200,201,209,210,217,222,235,237，239. 200,201,209,210,217,222,235,237,239.
b. Rookets, flares or falling bodies: b。 Rookets, flares or falling bodies:
#4，5,6,7。8,9,12，13，14,15,16,25，56，65,78，106。107, #4，5,6,7。8,9,12,13，14,15,16,25，56，65,78，106。107,
108, 109,133, 170, 211, 218. 108, 109, 133, 170, 211, 218.
c. Miscallaneaua (reflections. auroral streamers. hirda. ato.), a. Miscellaneous (reflections, auroral streamers, birds, eto.):
#39,89,123,124,128,146,164,181,189,214,221,231,234。
3. Non-astronomical, with no explanation evident
Lack of evidence preoludes explanation:
#38，44，45，47，56。57，72，86，87，88，90，99。110，117，118,
125, 127, 137, 139, 149, 150, 177, 179, 191, 206, 212, 213,
229,232,233.
b。 Evidence offered suggests no explanations
1，2，10，17，21，29，37，40，51，62。58，61，62，64，68，71。
75, 76,77, 79, 84, 105, 111, 122, 135, 151, 152, 154, 162,
168,172,176,183,186,193,207,215,223,224,225,226,
227, 236, 241, 242,243, 244,134。

UNCLASSIFIED
Incident #69, 69a -- Philadelphia, Penasylvania -- 6 August 1947
The reportsof this incident and those of #70 refer to the
same object end are typical of descriptions of relatively slow
moving meteors. The speed, trail, hissing sound (after passage -
although this ceuld easily have been a subjective reaction, and
color all check with the object's having oeen a fireball, bolide,
or large neteor.
1.
DOWNGRADED :7 12 YEAR:
INTERVALSTNOT AUTOMATICALLN.
DECLASSIFIED. DOD DIR 5200.10
3
UNCLASSIFIL
71
1778

Inoident #70, 70a -- Philadelphia, Pennsylvania -- 6 August 1947
The dosoriptions given of this object are typical of
tnose of relatively slow moving meteors. S See report on incident
#69 ror details.
N
1/7
416

C
0
P UNCLASSIFIED
Y
TO: Director, FBI DATE: September 18, 1947
FROM: SAC, Philadelphia
9
SUBJECT: F1ying OBJECT REPORTED OVER PHILADELPHIA
AUGUST 6, 1947
SABOTAGE
Remytel August 7 last.
Miss ,Philadelphia, who is employed
by the GEORGE R. GREENWALD MANUFACTURING COMPANY, 1524 Chestmut Street, Phila-
delphis, advised as follows:
DEFERRED RECORDING
Between 10:30 and 10:45 p.m. on August 6, 1947, she was sitting on
the steps of her home with . She was facing north and observed
a large white object traveling at a very fast rete of speed to the south.
There was a buzzing sound, not too loud but plainly audible, just after this
object passed through the air. This white object left in its trail a thin
streak or smoke, which was grayish in color. streak of smoke, which was grayish in color.
Miss wwt, Philedelphia, who is em- t,Philedelphia, who is em-
ployed by the PRESSMAN & GUTMAN COMPANY, INC., Room 1l40, P.S.F.S. Building,
Philadelphia, stated she was sitting on the steps of Miss home on
the evening of August 6, 1947, around 10:45 p.m. engaging in conversation
with Miss when Miss abruptly stopped in the middle of her con-
versation end appeared to be frightened. Miss at that time wes sitting versation end appeared to be frightened. Miss at that time wes sitting
in a position in which she was facing south. She did not see eny object in
the sky efter noting Miss chenge of expression, but she did hear chenge of expression, but she did hear
a slight buzzing sound.
Philadelphia, en insurance agent, Philadelphia, en insurance agent,
who wes a former pilot of B-24's in the Army Air Corps, advised as follows:
He was sitting on the steps of his home around 10:45 p.m. on August
6, 1947, with his wife; end his neighbors,' the  family, were sitting on
their steps next door to the residence of All of the above perties
were facing east. noticed at this time an object, emitting a bluish-
white fleme, passing quickly through the air. The object was traveling from
northeast to southwest. Using his experience in the Army Air Corps as a guide,
estimated the above object was between l000 and 3000 feet in the air
and traveling at a rate of between 400 to 500 miles en hour, This objeet did
not lose elevation as ih passed through the eir end lert either smoke or a
condensetion treil in its former path, which lested for about two seconds.
A hissin: sound accompanied the passing of this object. This sound wes moder-
ate nnd not nearly as loud as the noise accompenying the passage of a rocket
ship, HANDLED BY
STOP DESK

UNCLASSIFIED
Director, FBI September 18, 1947
20 t,who is a retired police officer
of the Philadelphia Police Department, advised as follows:
Around 10:45 p.m. on August 6, 1947, he end his wife were sitting on
the steps of their home, when   noticed en object resembling to him a
giant firecracker, pass quickly through the air. heard no noise, but
the object had completely passed from view in a southern direction within a
split second. It left a fiery trail for sbout l00 feet. August 6, l947,
was a clear night, end no storm was brewing. was sure the object he
sew wes no felling star, and he noted the above object did not seem to be
falling but maintained the same altitude.
The wives of  and  verified the acccunts of their husbands
as to the above-mentioned object.
It is to be noted that the sand the s live in Northeast
Philadelphia near Oxford Circle, which is.about ten miles removed from the
residence of Miss .Miss s residence is located in the western
part of Philadelphia. The Misses end part of Philadelphia. The Misses  end are not known to the above- are not known to the above-
mentioned s and . It is further noted the observation of Miss mentioned and . It is further noted the observation of Miss
theandthe roughly correspond. All of the above
persons seem reliable and not the type to seek publicity or to spread rumors.
Miss y called the "Inquirer", Philadelphia news-
paper, and inquired if it could offer anyexplenation as to whet they hed
seen. A representative of that paper hadadvised Miss end  that seen. A representative of that paper hadadvised Miss  end  that
the object they saw may have been some product of an oil refinery or chemical
company in their neighborhood.
Both the Offices of Naval Intelligence and Army Intelligence in Phila- Both the Offices of Naval Intelligence and Army Intelligence in Phila-
delphia were requested by the Philadelphia Office to asoertain if either the
Army or the Navy was doing any experimental work on new types of planes or
equipment, in the vicinity of Philedelphia. Such was done with negative re-
sults. The Office of Naval Intelligence indicated that an explosion had oc-
curred at the CHARLES LENNIG CHEMICAL COMPANY on August 6, 1947.
S, A. GIMBEL, Safety Departmentof the CHARLES LENNIG CHEMICAL COMPANY,
IMNc., So0o Richmond Street, Philedelphia, advised as follows:
The above company is a manufacturer end distributor of chemicals.
A Pire had oncurred on a dump of the company on ugust 6, l947, but was
quiekly gotten under control, Such fire was confined to the company's prem-
ises end could not have been observed frem outside the plant. The CHARLES
-2

Director, FBI September 18, 1947
LENNIG COMPANY is about two and one-half miles southeast from Oxford Circle.
The account of the fire does not seem to fit into the general pattern of the
above-mentioned flying object, for it is noted that the flying object was
allegedly traveling from a position northeast of Oxford Circle to a south-
westerly direction in Philadelphia. GIMBEL pointed out that, to bhe best
of his knowledge, there-ere no oil refineries and chemical companies located
around Oxford Circle or north of such, but that all of the companies of this
type ere several miles south of Oxford Circle.
All logical investigation having been conducted, no further action
will be teken on the instent matter unless edvised to the contrery by the
Bureau.
FFB/ctg
98-1762
1

Between 10:30 and 10:45 P. M. 6 Aug 47, Miss was seated on the
steps of her home with She was facing norhh and observed
a large white object traveling at a very fast rate of speed to the south.
There was a buzzing sound, not too loud but plainly audible just after
the object passed thru the air. The object appeared white in color and
left a thin streak of smoka which was grayish in color.
147

CHECK-LIST - UNIDENTIFIED FLYING OB UNCLASSIFIED
1. Date 6 Ang 47 Incident # 69
2.Time 2230-2245
3. Location Philadelphia, Pa.
4. Name of observer
5. Occupation of obsorver employed by Geo A. Greenwald Mfg Co.
6. Address of observor Pa.
7. Placo of observation At observer's home
8. Number of objocts 1
9. Distance of object from observer /s
10. Timo in sight 3/s
11. Altitude /s 11. Altitude /s
12. Speod Very fast 12.3 Speod Very fast
13. Direction of flight South
14. Tactics /S - epparently straight flight 1h. Tactics /s - epparently straight flight
15. Sound slight buzzing after passage of object
16. Size large
17. Color white
18. Shapo n/s
19.0 Odor dotacted 3/5
20.A Apparent construction 3/s
21. Exhaust trails Thin streak of grayish smoka
22. Woathor conditions 3/3
23. Effoct on clouds 3/s
21.8 Skotches or photographs none
25, Wanner ot dicappearanco m/3
26,, Romarks: (over)

A2
she observed thet Miss appeared frightened. As she was fucing
south she did not see the object after she noticed her compenion'
change of epression but she did hear a slight buzzing sound.
))
5149