Collectible coins are often categorized based on their historical significance, rarity, and condition. In the United States, one-cents (1c) coins include various designs and issues, with notable examples such as the Lincoln penny. Proof sets, particularly from 1986, are highly sought after by collectors due to their premium quality and limited release, often featuring coins with mirror-like finishes and sharp details. These sets are typically produced for collectors rather than general circulation, enhancing their appeal and value in the numismatic market.

Item Denomination Series Year Mint
1986-S 1c-$1 Prestige Proof Set 1c-$1 Proof Sets 1986 San Francisco