Subject of the commemorative coin:
 250th birthday of François-Joseph Bosio

 Description:
 The design shows the portrait of Prince Rainier III. At the top, in semi-circle, is the name of the issuing country “MONACO”, followed by the year of issuance “2023”. At the bottom is the inscription “RAINIER III”, followed by the date “ 31 MAI 1923 ”. The outer ring of the coin features the twelve stars of the European flag.