Collectible coins are often categorized by their historical significance, rarity, and condition. The 1851 G 5 coin from the Dunbar Company, minted in San Francisco, is a notable example from the United States, reflecting the coinage practices and economic conditions of that era. Such coins can be sought after by numismatists for their aesthetic value and investment potential.

Item Denomination Series Year Mint
1851 G$5 Dunbar & Co. K-1 G$5 Dunbar & Company 1851 San Francisco