Collectible coins in the United States include various denominations such as 1 cent (penny) and 50 cents (half dollar). Proof sets, particularly those minted in San Francisco, are produced with a special process that ensures a high-quality finish. The 1993 Proof Set is notable for its inclusion of coins with a mirror-like surface and sharp details, appealing to collectors for both its aesthetic and historical value. These sets often contain coins representing different denominations issued in that year, showcasing the artistry and craftsmanship of the U.S. Mint.

Item Denomination Series Year Mint
1993-S 1c-50c Proof Set 1c-50c Proof Sets 1993 San Francisco