| Country | 🇬🇧 United Kingdom |
| Year | 1811 |
| Denomination | 1 Shilling (1⁄20) |
| Face value | 12p |
| Mint | Royal Mint · Llantrisant |
| Series | Shilling |
| Circulation | Circulating |
| Demonetised | 1831 |
| Composition | Silver |
| Weight | 4.210g |
| Diameter | 25.3mm |
| Shape | Round |
| Orientation | Medal alignment ↑↑ |
| Grade scale | UK (EF/UNC) |
Arms above date, legend around. Script: Latin
A sloop sailing to left, legend around. Script: Latin