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 CA126.17

  1. Ca126.17-80
    Wns Number
    CA126.17
    Country / Post
    Canada
    Date of Issue
    October 24, 2017
    Subject
    Toronto Maple Leafs - 100th Anniversary
  2. Ca127.17-80
    Wns Number
    CA127.17
    Country / Post
    Canada
    Date of Issue
    October 24, 2017
    Subject
    Toronto Maple Leafs - 100th Anniversary
  3. Ca128.17-80
    Wns Number
    CA128.17
    Country / Post
    Canada
    Date of Issue
    October 24, 2017
    Subject
    Toronto Maple Leafs - 100th Anniversary