All San Fransisco coins were struck in proof condition for collectors. The standard weight of these coins was 350 grains.Īll coins of Denver and Philadelphia were stuck for regular circulation. United States Mint of San Francisco, United States (1854-date) United States Mint of Denver, United States (1906-date) United States Mint of Philadelphia, United States (1792-date)
Frank Gasparro was the tenth Chief Engraver of the United States Mint, holding this position from Februto January 16, 1981.
