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.

BE005.11

Country / Post Belgium
Date of Issue 17 January 2011
Primary theme Astronomy & Space
Subject Twelve Signs of the Zodiac
Width 48.8 mm
Height 30.0 mm
Denomination 0.61 €
Number in set 1
Layout/Format self adhesive sheet of 10
Perforations 9 by 9
Stamp issuing authority La Poste De Post Belgique
Printer La Poste - Imprimerie du Timbre à Mechelen