20 Centimes - Léopold I

Belgium's 1832 monetary law established a decimal franc system closely mirrored on the French model, and these small silver pieces circulated alongside French 20 centimes of identical fineness — a practical reality that periodically unnerved the Belgian treasury, since French coins were legally accepted in Belgium but not always the reverse. The resulting drain on domestic silver coinage was a recurring administrative headache throughout Léopold I's reign.