Collectible coins include a variety of types such as patterns, trial coins, and regular issue coins. The United States minted a trial coin in 1813, specifically a fifty-cent piece, as a pattern coin in Philadelphia. These early designs often featured experimental motifs and compositions intended to test public and governmental reaction before official release. Collectors highly value such pieces due to their rarity and historical significance.

Item Denomination Series Year Mint
United States of America 1813 Philadelphia Patterns & Trial Coins 50¢ 50¢ (Fifty Cents) Patterns & Trial Coins 1813 Philadelphia