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 QA005.11

  1. Qa004.11-80
    Wns Number
    QA004.11
    Country / Post
    Qatar
    Date of Issue
    October 16, 2011
    Subject
    11th Qatar Classic Squash Championship
  2. Qa005.11-80
    Wns Number
    QA005.11
    Country / Post
    Qatar
    Date of Issue
    October 16, 2011
    Subject
    11th Qatar Classic Squash Championship
  3. Qa006.11-80
    Wns Number
    QA006.11
    Country / Post
    Qatar
    Date of Issue
    October 16, 2011
    Subject
    11th Qatar Classic Squash Championship
  4. Qa007.11-80
    Wns Number
    QA007.11
    Country / Post
    Qatar
    Date of Issue
    October 16, 2011
    Subject
    11th Qatar Classic Squash Championship