8 photographs ranging in size from 8 x 10 in. to 20 x 16 in. Each color or black and white photographs dating from the 1940s and 1950s relating to various nuclear weapons tests including Trinity, Knothole, Grable, and Hood on Harman Fiber paper. Seven (7) prints have been matted.

From 1945 to 1992 the United States conducted 1,054 nuclear tests, most of which took place at the Nevada Test Site and the Pacific Proving Grounds in the Marshall Islands.