Collectible coins encompass various types, including patterns, which are experimental pieces struck to test designs or technological innovations before official minting. The United States has produced several notable patterns, including the 1870 issues, which are considered rare and significant in numismatic history. The designation "P" often refers to the Philadelphia Mint, where many U.S. coins are produced, including the 250 known 2.50-dollar gold pieces, commonly referred to as quarter eagles. Collectors prize these coins for their historical context, artistry, and potential investment value.
| Item | Denomination | Series | Year | Mint | |
|---|---|---|---|---|---|
|
1870 P$2.50 Copper J-1026 BN | P$2.50 | Patterns | 1870 | Philadelphia |