Collectible coins include various types such as bullion coins, proof coins, and numismatic coins, which are sought after for their historical significance, rarity, and artistic design. The United States has a rich history of collectible coins, including the twenty-dollar gold coins, commonly referred to as double eagles. The American Liberty Gold coin series features iconic designs that represent themes of freedom and democracy. The year 1857 is notable as it marks a transitional period in American coinage, coinciding with the introduction of new minting techniques and designs that increased the popularity of gold coins among collectors.

Item Denomination Series Year Mint
1857 $20 $20 (Twenty Dollars) American Liberty Gold 1857 Philadelphia
1857 $20 CAM $20 (Twenty Dollars) American Liberty Gold 1857 Philadelphia
1857-O $20 $20 (Twenty Dollars) American Liberty Gold 1857 New Orleans
1857-S $20 $20 (Twenty Dollars) American Liberty Gold 1857 San Francisco