Identification on verso (handwritten and stamped): Title: Evolution of Communication in American Wars; Artist: Letterio Calapai Identification on verso (handwritten and stamped): Federal Art Project W.P.A.; Photographic Division; 18 East 57th St.; New York City; Location: 101st Signal Batt. 801 Dean St., Bklyn; Artist at work on mural; Negative No.: N132A.
Archives of American Art, Smithsonian Institution Washington, D.C. 20560