1952.
Every briefing filed under “1952”, newest first.
| 003 | 2026-09-24 | The Navy's personnel record of Delbert C. Newhouse: three jackets, twenty-two years, and no word of the film | T2 PRIMARY DOCUMENT | → |
| 005 | 2026-09-24 | The Ruppelt tape and its transcript: a 1952 talk, one summary on two records, and the pages under it | T2 PRIMARY DOCUMENT | → |
| 001 | 2026-09-24 | Project Blue Book's Tremonton file: the question list, the superseded report and four years of answers | T2 PRIMARY DOCUMENT | → |
| 002 | 2026-09-24 | The Tremonton film transfer: seventy seconds, forty-six of them an even blue field | T2 PRIMARY DOCUMENT | → |
| 004 | 2026-09-24 | The Air Force flying discs file, August to December 1952: the Navy request, a CIRVIS memorandum, an FBI laboratory and a circle on a lawn | T2 PRIMARY DOCUMENT | → |