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.

Stamps issued with DZ015.06

  1. Dz014.06-80
    Wns Number
    DZ014.06
    Country / Post
    Algeria
    Date of Issue
    September 20, 2006
    Subject
    International Year for Desert and Desertification
  2. Dz015.06-80
    Wns Number
    DZ015.06
    Country / Post
    Algeria
    Date of Issue
    September 20, 2006
    Subject
    International Year for Desert and Desertification