The following describes the basic categories of coins produced by the U.S. Mint since its creation in 1793 and, prior to that time, by several individual States. Regular Issue Coins Regular issue coins are produced by the U.S. Mint for the purpose of providing currency for commercial transactions. In most cases, the design of these coins changes infrequently and the quantities minted annually are very high. The vast majority of coins fall into this category. Proof Coins Proof coins are specially minted for sale at a premium to collectors or as gift items.
Proof coins differ from regular issue coins in two major ways.
First, proof coins are not intended to be actually used in commerce. Secondly, proofs are struck twice and highly polished during the minting process to create a shiny, frosty or mirror-like finish on the coins and very sharp details. They are, therefore, more aesthetically pleasing than regular issue coins. The U.S. Mint offers sets of proof coins directly to the public. Commemorative Coins Commemorative coins are minted to commemorate a special event, famous person or important anniversary.