Artist: Julien et Nina Lefèvre; mark: J.N. Lefèvre
Reference: KM# 55
Diameter: 21 mm
Reverse In the central part, the denomination of 1 franc in French: "1F". Above it is the Grand Ducal crown. Along the lower edge arc is the year of issue - 1976.
Obverse In the central part of the coin is the left-facing profile of Luxembourgish statesman Jean. Below are the artists' initials: "J.N. Lefèvre" - Julien et Nina Lefèvre. To the left and right along the rim are inscriptions in French: "JEAN GRAND-DUC DE LUXEMBOURG" - "JEAN GRAND DUKE OF LUXEMBOURG".