Collectible coins include various categories such as patterns, trial coins, and regular issue coins. In the United States, the 1 One Cent Penny is a prominent example, particularly the 1982 series, which introduced changes in composition and design. Patterns and trial coins, often created for testing purposes or design proposals, are particularly rare and sought after by collectors. The designation "N A" may refer to specific grading conditions or classifications relevant to those coins within collectible markets.

Item Denomination Series Year Mint
United States of America 1982 N/A Patterns & Trial Coins 1¢ 1¢ (One Cent, Penny) Patterns & Trial Coins 1982 N/A