Collectible coins are items sought by numismatists for their historical significance, rarity, and aesthetic appeal. Patterns are experimental pieces struck to test designs or compositions before official minting; an example is the 1870 Philadelphia Pattern 10-cent coin (PH10c), which represents an important period in U.S. numismatic history. These coins are often evaluated for their condition, provenance, and the context of their creation, influencing their market value.

Item Denomination Series Year Mint
1870 PH10c Silver J-809 PH10c Patterns 1870 Philadelphia