100 francs Grimaldi coat of arms

Obverse

Obverse legend

Reverse legend

Reverse

Retouched photo of a coin sold by cbg.fr (erasure the word ''essai'' and modification of the color for a better visual rendering of the original result), link to the sale and their website: https://www.cgb.fr/monaco-principaute-de-monaco-rainier-iii-essai-de-100-francs-or-1956-paris-spl,v46_0831,a.html.

The coin on the photo is a gold coin whose color I have modified so that it corresponds to the visual of a bronze-aluminum coin.