June 1942. Fort Knox, Kentucky. "The crew of an M-3 tank learns all the ways of causing trouble for the Axis with a 75mm gun, a 37mm gun and four machine guns." 4x5 Kodachrome transparency by Alfred Palmer, OWI. View full size.

"Loading bus, leaving Manzanar for relocation. Manzanar Relocation Center, California." Large format nitrate negative by Ansel Adams. View full size.

"Boy Scout training demonstration, 1912." The third photo so far in our series on Scout first aid. Harris & Ewing Collection glass negative. View full size.

Washington, D.C., in 1925. "Stoneleigh Court, L Street N.W." For some reason I feel like Jimmy Stewart here. National Photo glass negative. View full size.

1912. "German port call. U.S. battleship in Hampton Roads to greet German squadron." Harris & Ewing Collection glass negative. View full size.