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.

All registered stamps issued by Azerbaijan in 2013

The 2013 issuing programme is not available.
  1. Az061.13-80
    Wns Number
    AZ061.13
    Country / Post
    Azerbaijan
    Date of Issue
    December 12, 2013
    Subject
    Mehdi Huseynzade - Joint issue of Azerbaijan and Slovenia

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