All 1905-S pesos are uncommon, because by 1906 the rising price of silver made the coins worth more as precious metal than as legal tender. By 1911 as many as 90 percent of the 6,056,000 minted had been pulled from circulation and melted. Most of the coins of this mintage have a curved upper serif on the number 1 of the date. The Straight Serif would later be the normal style for 1906 pesos. But for the 1905-S itÂ’s an extremely rare die variety, especially in Mint State, where its value runs in the thousands of dollars.
| coinage-type | 1 peso, territorial obverse |
| desg | MS |
| designer | Melico Figueroa |
| diameter | 37 |
| edge | Reeded |
| fineness | 0.9 |
| material | 90% silver |
| mint-mark | S |
| mintage | 6,056,000 |
| ngc-id | 2CAK |
| pcgs-link | 90385 |
| pcgs-number | 90385 |
| reverse-description | An eagle is portrayed in the center atop an American shield with 13 stars. UNITED STATES OF AMERICA is written around the periphery with the date at the bottom. |
| variety | USPI, Curved Serif |
| variety-2 | Allen 16.06 |
| weight-grams | 26.95 |
| weight-ounces | 0.95 |
| year-display | 1903-1906 |