Collectible coins represent a niche category within numismatics, encompassing various types such as patterns, which are experimental coins or designs created prior to official minting. The 1866 patterns, for example, were struck in the United States to explore new designs and denominations but were never officially issued for circulation. The term "P 10" likely refers to a specific pattern coin designation or variety within the broader context of collectible coins. Collectors often focus on rarity, design, historical significance, and condition when valuing these coins.
| Item | Denomination | Series | Year | Mint | |
|---|---|---|---|---|---|
|
1866 P$10 Copper J-548 | P$10 | Patterns | 1866 | Philadelphia |