Collectible coins, particularly patterns, are experimental pieces created to test new designs or compositions before official production. In the context of the United States, the 1869 Philadelphia pattern coins represent specific trials conducted by the U.S. Mint. These coins, often produced in limited quantities, are significant to collectors due to their historical value and rarity, reflecting the minting practices and artistic developments of that era. The PH10c designation typically refers to a specific design or type within this category of collectible coins.

Item Denomination Series Year Mint
1869 PH10c Copper J-692 BN PH10c Patterns 1869 Philadelphia