| Obverse description | Bareheaded King Léopold I with short sideburns facing left. Text in French surrounding, date below. |
| Obverse script | Latin |
| Obverse lettering | LEOPOLD PREMIER ROI DES BELGES
1859 (Translation: Leopold the First, King of the Belgians) |
| Reverse description | Value at center surrounded by braided circle. French text above flanked by two 5-pointed stars. Silver content below. |
| Reverse script | Latin |
| Reverse lettering | ESSAI MONETAIRE
1 Fs.
TITRE 0.850 (Translation: Monetary Pattern 1 Franc Contents 0,850) |
| Edge | |
| Mint | |
| Mintage | 1859 - - |
| Catalog ID | 4030998780 |
| Comments |