Collectible coins encompass a range of numismatic items, including historical coins, commemorative pieces, and modern bullion, highly valued for their rarity, condition, and demand. In the United States, coins such as the G 50 (which generally refers to the grading scale) signify a specific state of preservation, with G standing for "Good" condition, meaning the coin may show significant wear but still retains identifiable features. Collectors often seek coins from different eras, minting techniques, and limited editions, contributing to their appreciation and investment value.

Item Denomination Series Year Mint
1851 G$50 Humbert 880 THOUS, No 50, Lettered Edge, K-2 G$50 U.S. Assay Office - Augustus Humbert 1851 California
1851 G$50 Humbert Target Rev, 887 THOUS, Reeded Edge, K-6 G$50 U.S. Assay Office - Augustus Humbert 1851 California
1852 G$50 Humbert Target Rev, 887 THOUS, Reeded Edge, K-11 G$50 U.S. Assay Office - Augustus Humbert 1852 California
1852 G$50 U.S. Assay Office 887 THOUS, K-13 G$50 United States Assay Office of Gold 1852 California
1855 G$50 Kellogg & Co. Commemorative Restrike G$50 Kellogg & Co. 1855 San Francisco
1855 G$50 Kellogg & Co. K-4 G$50 Kellogg & Co. 1855 San Francisco
1855 G$50 Wass, Molitor & Co. K-9 G$50 Wass 1855 San Francisco