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.

BE005.04

Country / Post Belgium
Date of Issue 19 January 2004
Primary theme Fine Arts
Transportation (Ships & Navigation)
Subject Art - Fernand Khnopff (1858-1921)
Width 55.32 mm
Height 24.0 mm
Denomination 0.41 €
Number in set 4 (show set)
Layout/Format miniature sheet of 4 of 4 designs
Perforations 12 by11.7
Stamp issuing authority La Poste De Post Belgique
Printer La Poste Imprimerie du Timbre à Mechelen