| Country | United States of America |
| Year | 1855 |
| Serie | Patterns & Die Trials |
| Denomination | DT$50 |
| Mint | San Francisco |
| coinage-type | Pioneer & Territorial Issues |
| desg | MS |
| material | Copper |
| pcgs-link | 10229 |
| pcgs-number | 10229 |
| variety | Kellogg & Co. |
| variety-2 | Copper Die Trial |
| year-display | 1854-1855 |