NGC MS 62 (6642260-003).
Av. LOUIS II PRINCE - OF MONACO. Bust left; signature P. TURIN.
Rv. 20 FRANCS (different) (date) (different). Grimaldi shield crowned between two large ears of corn; in the 0 of the figure, the word ESSAI.
G.MC137 - KM.E23; Gold - 18.74 g - 30 mm - 6 h