Patterns and die trials are unique experimental coins created to test new designs, compositions, or manufacturing processes before a final version is issued. In the United States, these coins were often struck in limited numbers and are highly sought after by collectors. The 1850 G 10 is a specific grading designation for certain coins, indicating their condition. Coins of this era can be particularly valuable due to their rarity and historical significance.

Item Denomination Series Year Mint
1850 G$10 Baldwin Horseman, Silver Restrike G$10 Patterns & Die Trials 1850 San Francisco