Collectible coins, particularly those from the United States, encompass various types including commemorative coins, bullion, and circulating coins. The 1 cent (1c) coin, or penny, holds significant historical value, especially when considering different minting years and conditions. Proof sets, such as those issued in 1979, contain specially produced coins with a high-quality finish, intended for collectors. These sets often include multiple denominations and are sought after for their pristine condition and limited availability.

Item Denomination Series Year Mint
1979-S 1c-$1 Proof Set Type 1 1c-$1 Proof Sets 1979 San Francisco