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Number 12421 handwritten on verso. 2016-2755. Elevated view of nightlife in the Zones at the Panama-Pacific International Exposition, 1915, San Francisco. Handwritten caption includes title and, "the greyish streaked appearance of the street is the moving crowd. Karl Hoffman;
Panama-Pacific International Exposition, (1915 :. San Francisco, Calif.)--Photographs Nightlife--California--San Francisco Exhibition buildings--California--San Francisco Lighting--California--San Francisco San Francisco (Calif.)--Photographs Photographic prints Night photographs