Subject of the commemorative coin:
 Belgian-Luxembourg Economic Union (BLEU)

 Description of the design:
 In the centre of the coin, above the date “2005”, are the effigies of Grand Duke Henri of Luxembourg and King Albert II of Belgium in profile (from left to right). The engraver’s initials “LL” are at the bottom right. Both effigies and the date are surrounded by the twelve stars of the EU and by the monogram of Grand Duke Henri on the left and that of King Albert II on the right. The mint marks are between two stars at the bottom of the coin.