The World Association for the Development of Philately (WADP) and the Universal Postal Union (UPU) jointly conceived and developed the WADP Numbering System - WNS, which was launched on 1 January 2002.

BE031.04

Country / Post Belgium
Date of Issue 19 April 2004
Primary theme Politics & Government
Subject The European Union - European Elections
Width 48.75 mm
Height 38.15 mm
Denomination 0.60 €
Number in set 4 (show set)
Layout/Format miniature sheet of 4 of 4 designs
Perforations 11.5 by 11.5
Stamp issuing authority La Poste De Post Belgique
Printer La Poste Imprimerie du Timbre à Mechelen