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.


Country / Post Algeria
Date of Issue 20 September 2006
Primary theme Geography & Meteorology
Minerology & Geology (Mountains & Geological features)
Subject International Year for Desert and Desertification
Width 35.0 mm
Height 25.0 mm
Denomination 15.00 DZD
Number in set 2 (show set)
Layout/Format sheet of 25
Perforations 14 by 14
Stamp issuing authority Algerie Poste
Printer Imprimerie Banque Centrale D'Algerie