Modern commemorative coins were introduced in the United States in 1982 to celebrate specific events, individuals, or themes. The San Francisco Mint produced several commemorative coins, including the 1991 One Dollar coin, which honored the 1991 World Series. These coins often feature unique designs and are made in limited quantities, making them popular among collectors.

Item Denomination Series Year Mint
1991-S (San Francisco) Modern Commemoratives $1 (One Dollar) Modern Commemoratives 1991 San Francisco