Panama-Pacific International Exposition (1915 : San Francisco, Calif.) Search this
Gelatin silver prints; 10 x 8;
USNM No. 19839A
Interior view, Department of the Interior exhibits in the Palace of Mines and Metallurgy, featuring U.S. Bureau of Mines "Multiple Hearth Roasting Furnace loaned by The Furnace Patent Co., Philadelphia PA."
Smithsonian Institution Archives, Record Unit 95, Box 63, Folder 06, Image No. SIA_000095_B63_F06_012
Smithsonian Institution Archives Capital Gallery, Suite 3000, MRC 507; 600 Maryland Avenue, SW; Washington, DC 20024-2520