The G 20 coins, commonly referred to as "G20" coins, signify a specific series of collectible coins that represent various themes or commemorations associated with the G20 summit or member countries. The Baldwin 1851 coin is a notable collectible, typically attributed to coinage produced in the year 1851 under Baldwin's minting operations. In the context of the United States, collectible coins from this era can include various denominations and designs, often sought after by numismatists for their historical significance and rarity. Collectors look for unique features, such as mint marks and condition, which can significantly affect the value of these coins.

Item Denomination Series Year Mint
1851 G$20 Baldwin K-5 G$20 Baldwin 1851 San Francisco