[Workers preparing a caisson used during construction of the San Francisco-Oakland Bay Bridge] [graphic]. - AAD-1923 - San Francisco Public Library

Photo Id#	AAD-1923
Title	[Workers preparing a caisson used during construction of the San Francisco-Oakland Bay Bridge] [graphic].
Date	1934 Feb. 14.
Description	1 photographic print: b&w.
Location	Folder: S.F. Bridges-Bay-Construction-Caissons.
Reproduction Rights	Permission to use this image must be obtained from the San Francisco History Center, San Francisco Public Library: www.sfpl.org/permissions.
Notes	On back: "SAN FRANCISCO-OAKLAND BAY BRIDGE; Walter G. Swanson; 500 Sansome St. - GA rfield 1415. File 900.11 B-12/AA. PLACING DOME ON FLOTATION CYLINDER FOR WORLD'S LARGEST CAISSON (PIER NO. 4, CONCRETE CENTER ANCHORAGE)."
Subject	San Francisco (Calif.) -- Photographs.
	San Francisco-Oakland Bay Bridge (Oakland and San Francisco, Calif.)
	Bridge construction -- California -- San Francisco Bay.
	Caissons.
Series	San Francisco Historical Photograph Collection