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 RS012.17

  1. Rs009.17-80
    Wns Number
    RS009.17
    Country / Post
    Serbia
    Date of Issue
    March 16, 2017
    Subject
    Protected Animal Species - Owls - Athene noctua
  2. Rs010.17-80
    Wns Number
    RS010.17
    Country / Post
    Serbia
    Date of Issue
    March 16, 2017
    Subject
    Protected Animal Species - Owls - Tyto alba
  3. Rs011.17-80
    Wns Number
    RS011.17
    Country / Post
    Serbia
    Date of Issue
    March 16, 2017
    Subject
    Protected Animal Species - Owls - Asio otus
  4. Rs012.17-80
    Wns Number
    RS012.17
    Country / Post
    Serbia
    Date of Issue
    March 16, 2017
    Subject
    Protected Animal Species - Owls - Otus scops