Testing M-4 tanks. A mighty flow of power is carried to the "track" by a driving sprocket of an M-4 tank in a trial run over the test hill of an Eastern manufacturing plant

Actual size of negative is C (approximately 4 x 5 inches).
Caption card lists some of the printing history of image.
Title and other information from caption card.
Transfer; United States. Office of War Information. Overseas Picture Division. Washington Division; 1944.
More information about the FSA/OWI Collection is available at http://hdl.loc.gov/loc.pnp/pp.fsaowi
Film copy on SIS roll 31, frame 848.