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 JP113.18

  1. Jp113.18-80
    Wns Number
    JP113.18
    Country / Post
    Japan
    Date of Issue
    April 20, 2018
    Subject
    Philately Week
  2. Jp114.18-80
    Wns Number
    JP114.18
    Country / Post
    Japan
    Date of Issue
    April 20, 2018
    Subject
    Philately Week