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 CA002.18

  1. Ca001.18-80
    Wns Number
    CA001.18
    Country / Post
    Canada
    Date of Issue
    January 15, 2018
    Subject
    Year of the Dog
  2. Ca002.18-80
    Wns Number
    CA002.18
    Country / Post
    Canada
    Date of Issue
    January 15, 2018
    Subject
    Year of the Dog
  3. Ca003.18-80
    Wns Number
    CA003.18
    Country / Post
    Canada
    Date of Issue
    January 15, 2018
    Subject
    Year of the Dog
  4. Ca004.18-80
    Wns Number
    CA004.18
    Country / Post
    Canada
    Date of Issue
    January 15, 2018
    Subject
    Year of the Dog