Photograph as originally submitted to this page in the Historical Marker Database www.HMdb.org. Click on photo to resize in browser. Scroll down to see metadata.
Map of the San Francisco Bay
Photographer: Barry Swackhamer
Taken: March 31, 2017
Caption: Map of the San Francisco Bay's military defences
Submitted: April 16, 2017, by Barry Swackhamer of Brentwood, California.
Database Locator Identification Number: p380399
File Size: 3.314 Megabytes

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