| Obverse description | Lion holding key, legend around. Date in exergue. |
| Obverse script | Latin |
| Obverse lettering | PAYABLE AT RICHARD CATTONS GOLDSMITH. GIBRALTAR 1813. |
| Reverse description | Crowned value within wreath. Legend around. |
| Reverse script | Latin |
| Reverse lettering | AGENTE PARA LA FABRICA DE DIAMANTES
PATENTES. DE DUDDELL HOLBORN.
LONDRES (Translation: Agents for Duddell of Holborn, London, for the manufacture of patented diamonds)) |
| Edge | Plain |
| Mint | |
| Mintage | 1813 - - |
| Catalog ID | 8640572210 |
| Comments |