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.

Photographer: Benicia Capitol State Historic Park
Taken: Circa 1956
Caption: The Clock
Additional Description: This clock was made in France for Sperry and Co. in San Francisco. It was brought around the horn on a clipper ship in the early 1850's. The pendulum is suspended by alternating rods of brass and steel. The two metals have opposite properties - when cold, one contracts and the other expands. This keeps the pendulum the same length, which keeps the clock accurate.
See Photo #21
Submitted: February 23, 2009, by Syd Whittle of Mesa, Arizona.
Database Locator Identification Number: p53896
File Size: 0.085 Megabytes

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