Collectible coins encompass a wide range of items including historical, commemorative, and rare pieces. Within the United States, the 1 One Cent Penny is a notable example, with various designs and historical significance over the years. Patterns and trial coins, such as those produced in 1818, serve as experimental pieces that may not have been issued for circulation, making them particularly sought after by collectors for their rarity and unique attributes. These coins often reflect the artistic and technological advancements of their time, contributing to their desirability among numismatists.

Item Denomination Series Year Mint
United States of America 1818 N/A Patterns & Trial Coins 1¢ 1¢ (One Cent, Penny) Patterns & Trial Coins 1818 N/A
United States of America 1818 Philadelphia Patterns & Trial Coins 1¢ 1¢ (One Cent, Penny) Patterns & Trial Coins 1818 Philadelphia