25th birthday of the heir to the throne, The Grand-Duke Guillaume
The coin depicts on the left-hand side of the inner part the effigy of His Royal Highness, The Grand-Duke Henri looking to the right, superimposed on the effigy of the hereditary Grand-Duke Guillaume, on the right-hand side of the inner part.
The date 2006 appears below both effigies, flanked by the letter ‘S’ and the logo of the Mint.
The word ‘LËTZEBUERG’ appears above the effigies along the upper edge of the inner part of the coin.
The 12 stars surround the design on the outer ring of the coin.