The coin in question is a 1870 United States 10¢ piece, categorized under the Patterns & Trial Coins series. This particular piece was minted at the Philadelphia Mint and stands out as a Proof coin, which indicates it was struck with a high level of craftsmanship, often for the purpose of presentation or to test new designs. Interestingly, this coin does not have specified dimensions such as width, height, or diameter listed, and the weight is also noted as zero, which may suggest that it is part of a conceptual prototype or a trial issue rather than a standard production piece. The mint mark is recorded as "None," further implying that it was produced in Philadelphia without any distinguishing mark. While the designer of this coin is not specified, the year of issuance, 1870, situates it within a unique period of American coinage history, reflecting the ongoing evolution of minting practices and designs of that era. The term "Patterns & Trial Coins" suggests that this piece may not have ever been officially circulated, as it appears to be part of a testing phase for coin designs, with a mintage listed as zero, which indicates that no actual coins of this specific type were produced for public use. In summary, this 1870 10¢ coin serves as a fascinating artifact of American numismatic history, representing a moment in time when new coin designs were being actively explored and evaluated, even if they never transitioned into common currency.
| currency | USD |
| currency-amount | 0.1 |
| designer | N/A |
| diameter | 0 |
| edge-type | N/A |
| height | 0 |
| material | Other |
| mint-mark | None |
| mintage | 0 |
| type | Coins |
| weight | 0 |
| width | 0 |
| year-display | 1870 |