In 1908, the United States minted trial coins and patterns, notably including designs for the $20 gold piece. Trial coins are experimental pieces created to test new designs or minting processes before full-scale production. The 1908 pattern coins often featured alterations or different artistic representations than the final issued versions. These collectible items are highly sought after by numismatists due to their rarity and historical significance, representing critical moments in U.S. coinage development.

Item Denomination Series Year Mint
1908-- (Unknown) Patterns & Trial Coins $20 (Twenty Dollars) Patterns & Trial Coins 1908 Unknown
United States of America 1908 Philadelphia Patterns & Trial Coins $20 (Twenty Dollars) $20 (Twenty Dollars) Patterns & Trial Coins 1908 Philadelphia