Information about mint: United States Mint, San Francisco

The San Francisco Mint is a branch of the United States Mint, and was opened in 1854 to serve the gold mines of the California Gold Rush. It quickly outgrew its first building and moved into a new one in 1874. This building, the Old United States Mint, also known affectionately as The Granite Lady, is one of the few that survived the great 1906 San Francisco earthquake. It served until 1937, when the present facility was opened.

Letter S, located:
- above the word SHILLING on Australian Shilling coins
- above the date on Australian Sixpence coins
- below the right half of the date on Australian Threepence coins
- above the word FLORIN or PENNY on Fiji Florin or Penny coins respectively
- above the word FIJI on Fiji Shilling coins
- below the right half of the date on Fiji Sixpence coins
- below the word FIJI on Fiji Half penny coins

On some of the coins it strikes, the San Francisco does not employ a mint mark.