MIL-STD-155A, MILITARY STANDARD: JOINT PHOTOGRAPHIC TYPE DESIGNATION SYSTEM (05 AUG 1955) [S/S BY MIL-STD-1812]

MIL-STD-155A, MILITARY STANDARD: JOINT PHOTOGRAPHIC TYPE DESIGNATION SYSTEM (05 AUG 1955) [S/S BY MIL-STD-1812]., Where type designations are used by agencies in the Department of Defense for photographic items, they shall be in accordance with this Standard. letter and a production issue number.