Though not required of public domain images, if you want to credit the library as the source, please use the following statement: "From the San Francisco History Center, San Francisco Public Library" and provide a link back to the item on our Digital Collections site.
Folder: S.F. Bridges-Bay-Views. On back: "Four and one-half miles of steel is the San Francisco-Oakland Bay Bridge which spans San Francisco Bay. The bridge is the only direct highway approach to Treasure Island, site of the 1939 Golden Gate International Exposition. In the background of this latest aerial view is the city of Berkeley. In the foreground can be seen a portion of the docks of San Francisco. The San Francisco-Oakland Bay Bridge was constructed by the California State Department of Public Works, of which Earl Lee Kelly is Director. C. H. Purcell is Chief Engineer and also State Highway Engineer." "California Toll Bridge Authority and Gabriel Moulin Photo."