DECLASSIFIEDUSAF PROJECT BLUE BOOK · NARA T-1206
UNITED STATES AIR FORCE

PROJECT BLUE BOOK

UNIDENTIFIED FLYING OBJECT CASE FILES · 1947 – 1969

1950s — 4947 case files

chronological · by state · sighting map

UNDATED1950195119521953195419551956195719581959
ARRANGE FILES BYDATELOCATIONCASE NO.

Undated — 57

1950 — 197

1951 — 149

1952 — 576

1953 — 421

1954 — 475

1955 — 557

1956 — 618

1957 — 944

1958 — 572

1959 — 381

Public-domain United States government records (USAF Project Blue Book, NARA microfilm publication T-1206). Machine transcription from microfilm scans — typewritten bodies read well; stamps, marginalia and handwriting imperfectly. Pages marked poor legibility await re-examination. Source scans are linked unaltered on every case file.