| Country | 🇬🇧 United Kingdom |
| Year | 1787–1799 |
| Denomination | 1 Guinea (21⁄20) |
| Face value | 1p |
| Mint | Royal Mint · Llantrisant |
| Circulation | Circulating |
| Demonetised | Yes |
| Composition | Gold (.9167) |
| Weight | 8.350g |
| Diameter | 24.0mm |
| Shape | Round |
| Orientation | Medal alignment ↑↑ |
| Grade scale | UK (EF/UNC) |
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