| Obverse description | A lion, symbol of Belgium, with a paw over the Belgian Constitution dating 1831. Around is the Belgian motto in French. Value and legend in French below. |
| Obverse script | Latin |
| Obverse lettering | L`UNION FAIT LA FORCE
BELGIQUE
1859 (Translation: Unity Makes Strength Belgium) |
| Reverse description | Value at low centre flanked by two flowers. Text in French above. |
| Reverse script | Latin |
| Reverse lettering | ESSAI MONETAIRE
20
CENTIMES (Translation: Monetary Trial) |
| Edge | |
| Mint | |
| Mintage | 1859 - Proof - |
| Catalog ID | 5604394930 |
| Comments |