1. Photo 390/2(169) Reference (shelfmark): Photo 390/2(169) Title: El Gran Cañon del Colorado, U.S.A. Photographer: Case, Robert Charles Scope & Content: Genre: Landscape Photography Original and duplicate negatives only, no print. Subjects = Case Collection Location = U.S. of America Collection Area: Visual Arts Languages: Not applicable Date Range: 1920s-1930s Extent: 1 item