Black and White Photographs of U.S. Air Force and Predecessors' Activities, Facilities, and Personnel, Domestic and Foreign

The approximately 180,000 black and white negatives in this series correspond to prints in Record Group 342, Series FH ("Black and White and Color Photographs of U.S. Air Force and Predecessor Agencies Activities, Facilities and Personnel - World War II and Korean War") and Series B ("Black and White and Color Photographs of U.S. Air Force Activities, Facilities and Personnel, Domestic and Foreign"). Negatives in this series appear in two groups- some 154,000 housed in large (8 1/2"x11" or 9"x11") jackets, and some 26,000 housed in small (4 1/2"x5 1/2") jackets. The jacket size does not necessarily indicate negative size, since a majority of the negatives in the large jackets are in fact 4"x5" or smaller. A single numerical sequence spans both groups (large-jacket negatives are numbered 1 through 183007 with numerous gaps, and small-jacket negatives are numbered 155001 through 183087 with numerous gaps), with some cross-referencing for the "overlap" numbers. For those negatives numbered between 155001 and 183081 that appear in the large-jacket group, an empty jacket appears in the small-jacket group with the notation, "Original Filed in Oversize File." There are no similar cross-reference markers, however, in the large jacket group. Most of the first 5,000 items in the large-jacket group bear the agency designation "AC" (for "Air Corps," used principally on 1930's-1940's negatives but continued, for unknown reasons, into the era of the modern U.S. Air Force). Interspersed in the file are items taken earlier and bearing the "AS" (Air Service) suffix. The rest of the large jacket entries and the entirety of the small-jacket entries bear the updated "USAF" designation. Entries in both groups are, on the whole, negatives -- the original negative submitted by an Air Force photographer, an Air Force, generated copy negative, or, in some cases, both -- although there are also widely-scattered black and white transparencies and 35mm slides. Accompanying a minority of the