Subject of the commemorative coin:
 100th birthday of Grand Duke Jan
 Description:
 On the left, the design shows the effigy of Grand Duke Jean, on the right Grand Duke Henri. Next to each effigy, the respective name of the Grand Duke is mentioned, as well as the year of birth “1921” of Grand Duke Jean. Below the effigies, the outline of the city of Luxembourg can be seen. On the left, the text “GROUSSHERZOGE VU LËTZEBUERG” can be read in a circle, as a reference to the issuing country. The year “2021” is shown at the bottom right. The outer ring of the coin depicts the twelve stars of the European flag.