Collectible coins encompass a variety of types, including historical coins, commemorative pieces, and bullion coins, each attracting numismatists for different reasons. The G 50, or the Golden 50, typically refers to a classification used in grading coins, which indicates their quality and preservation. The United States Assay Office, particularly under Augustus Humbert, was significant during the California Gold Rush, minting coins that became highly sought after by collectors. These coins not only represent monetary value but also historical significance linked to America's economic development during the 19th century.

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