1857 $2.50. Obverse die varieties exist. One reverse die trial known.
| Country | United States of America |
| Year | 1857 |
| Serie | Patterns |
| Denomination | P$2 1/2 |
| Mint | Philadelphia |
| coinage-type | Pattern |
| desg | PR |
| edge | Reeded |
| material | Gilt Copper |
| obverse-description | Head of Liberty facing left, coronet inscribed LIBERTY, essentially the same style as later used on the regular nickel three-cent pieces of 1865. 13 stars around, date 1857 below (same die used to strike J-186 with a cent reverse). |
| reverse-description | Eagle at the center, wings outstretched, shield on breast, holding olive branch and three arrows. UNITED STATES OF AMERICA / 2 1/2 D around border. |
| variety | Gilt Copper |
| variety-2 | J-189 |
| year-display | 1857 |