Obverse: Depicts a hand pointing to a paper marked with stars. Below is the denomination 100 F. Around the edge is the inscription REPUBLIQUE FRANÇAISE. The coin was designed by Andreas Gal and engraved by the French Engraving Workshop (Atelier de Gravure, A.G.M.M.).
Reverse: Portrait of René Descartes in three-quarter view. Below is the year 1991. At the top is the motto of the French Republic LIBERTÉ ÉGALITÉ FRATERNITÉ, followed by the inscription DESCARTES.
About the coin: This 100 franc silver coin was issued in 1991 to commemorate the 395th anniversary of the birth of the famous French philosopher René Descartes. It is part of the commemorative circulating coin series of the Fifth French Republic. The coin is struck in 90% silver, with a weight of 15 g, diameter of 31 mm, and thickness of 2.30 mm.