Collectible coins include a variety of types such as numismatic coins, bullion coins, and commemorative coins. In the context of the United States, notable collectible coins include the G 10, which refers to a specific gold coin denomination. The U.S. Assay Office Moffat & Co. was one of the private minting operations in the 19th century, known for producing gold coins during the California Gold Rush. These coins often carry historical significance and are valued by collectors based on rarity, condition, and provenance.

Item Denomination Series Year Mint
1852 G$10 Moffat & Co. Close Date, K-8 G$10 U.S. Assay Office - Moffat & Co. 1852 California
1852 G$10 Moffat & Co. Wide Date, K-9 G$10 U.S. Assay Office - Moffat & Co. 1852 California