National Register of Historic Places in San Francisco
The following text is excerpted from from the Library of Congress Historic American Buildings Survey, September 1958:
Architectural and Historical Significance
The San Francisco Mint was, until the passage of the Coinage Act of 1873, but a branch of the parent establishment at Philadelphia. By this Act it was placed on an independent basis. It had however, attained greater importance than the Philadelphia Mint previous to this, and took the rank of the foremost in the United States due to its location as the central depot of all the gold and silver products of the Pacific Coast.
Physical History: The San Francisco Second U.S. Mint was begun in 1869 under the auspices of the Architects of the Treasury in Washington D. C., and was finished in 1874. The cornerstone (containing a copper casket of coins, newspapers, photographs and other mementos of the occasion) was laid on May 26, 1870.
The Mint was designed by A. B. Mullett, who also produced the Old State Building and the War and Navy Building in Washington, D. C. Since the building of a new Mint in 1937, it has not functioned as a Mint, but has been used for offices for various Federal Government Departnents or Agencies.
Historical Events: The San Francisco Mint in 1934 housed one-third of the nation's gold reserve, and survived the 1906 earthquake and fire aided by its iron shutters and Mint employees and soldiers who battled seven hours with a one-inch hose to protect the $200,000,000 stored in the vaults. In addition to its worth as a civic monument, the Mint is a valuable historic record of the end concept of Federal architecture conceived by our only architect president, Jefferson, and executed by LaTrobe, Mills and Mullett, various Federal buildings.
The Old United States Mint is chronologically the second of three United States Mints in San Francsico. The earliest mint was built on the waterfront in 1854 after gold began pouring into San Francisco from the Sierra Nevada foothills. The most recent mint was built in 1937.
In addition to being listed on the National Register of Historic Places, the Old United States Mint is a National Landmark, California Landmark 875, and San Francisco Landmark 236. Only two other San Francisco structures have achieved national, state and local recognition: Mission Dolores and the Conservatory of Flowers in Golden Gate Park.