Trial trimetallic of the 20 francs Princely palace

Obverse

Obverse legend

Reverse legend

Reverse

Retouched photo of a coin sold by Numiscorner (erasure spots for a better visual rendering of the original result), link to the sale and their website: https://fr.numiscorner.com/products/monnaie-monaco-rainier-iii-20-francs-1992-essai-spl-tri-metallic.