DEC 15

1 page

This date is written relative to its document — "last November", a weekday, "the following spring". Placing it needs the surrounding file, which a later stage of the archive pipeline resolves.

LetterTrue copy of anonymous letter naming Dan Cooper suspect, with 'Cooper Still At Large' clipping and Pocatello, Idaho envelope22 December 1972 · Part 95 · 3 pages · 1 of 3 pages

p. 158 · page 3 of 3Scanned image of a mailed envelope addressed to FBI Headquarters in Washington D.C., postmarked from Pocatello, Idaho on December 15 (year not clearly legible). A U.S. Postage stamp is affixed in the…