Collectible coins are items sought by numismatists and collectors for their historical significance, rarity, and aesthetic appeal. In the context of the United States, notable types include trial coins, which are experimental pieces struck to test new designs or technologies. One prominent example is the 1858 trial coin from the Philadelphia Mint, associated with the introduction of the Indian Head cent. These trial coins often feature unique design elements or compositions, distinguishing them from the regular-issue counterparts and enhancing their desirability among collectors.

Item Denomination Series Year Mint
1858-P (Philadelphia) Patterns & Trial Coins Other / Varied Patterns & Trial Coins 1858 Philadelphia
1858-P (Philadelphia) Patterns & Trial Coins Other / Varied Patterns & Trial Coins 1858 Philadelphia