The 1866 Proof Three Cent Silver comes from a moderately low mintage for its series of 725 coins; most of which were saved leaving the issue readily available to collectors and relatively affordable. Scarce only in gem condition. Cameo pieces are far more difficult to locate in all grades and deep cameos are a rarity. Look for attractive toners as this series is full of them.
| coinage-type | Three cent silver |
| desg | PR |
| designer | James B. Longacre |
| diameter | 14 |
| edge | Plain |
| fineness | 0.9 |
| material | 0.9 silver; 0.1 copper |
| mintage | 725 |
| ngc-id | 27CC |
| obverse-description | A six-pointed star with a harp in the center is surrounded by UNITED STATES OF AMERICA on the periphery and the date positioned at the bottom. For the type III issues (1859-73) there is a single frame line around the star. |
| pcgs-link | 3716 |
| pcgs-number | 3716 |
| reverse-description | The roman numeral III is centered in the design ensconced in a large, bejeweled letter C surrounded by 13 stars on the periphery. An olive sprig is added above the roman numerals. |
| weight-grams | 0.75 |
| weight-ounces | 0.02646 |
| year-display | 1859-1873 |