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.

DZ007.16

Country / Post Algeria
Date of Issue 22 March 2016
Primary theme Engineering (Dams)
Energy (Hydro)
Subject World Water Day - Beni-Haroun Dam - Mila
Width 48.0 mm
Height 34.0 mm
Denomination 25.00 DZD
Number in set 1
Layout/Format sheet of 25
Perforations 14 by 14
Stamp issuing authority Algerie Poste
Printer Imprimerie Banque Centrale d'Algerie