| Obverse description | Portrait of Prince Rainier III facing right. |
| Obverse script | Latin |
| Obverse lettering | RAINIER III PRINCE DE MONACO
R.COCHET
· 1965 · (Translation: RAINIER III PRINCE OF MONACO R. COCHET .1965.) |
| Reverse description | Crown and Grimaldi arms, value on left. |
| Reverse script | Latin |
| Reverse lettering | DEO JUVANTE
1/2 FR
ESSAI (Translation: With the Help of God 1/2 Franc Trial) |
| Edge | Reeded |
| Mint | Monnaie de Paris, Paris (and Pessac starting 1973), France (864-date) |
| Mintage | 1965 - browned flan - 1 000 |
| Catalog ID | 1335970110 |
| Comments |