Collectible coins include various types such as proof coins, commemoratives, and bullion issues, each appealing to different collectors. In the United States, the one-dollar denomination has been produced in various forms, including special editions and series. Proof sets, like those from 2012, consist of coins struck with a high level of detail and a mirror-like finish, making them desirable for collectors. These sets often include multiple denominations and highlight significant themes or events in American history.

Item Denomination Series Year Mint
2012-S $1 Presidential Proof Set 4 Coins $1 (One Dollar) Proof Sets 2012 San Francisco