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 CR009.12

  1. Cr009.12-80
    Wns Number
    CR009.12
    Country / Post
    Costa Rica
    Date of Issue
    October 09, 2012
    Subject
    America UPAEP - Myths and Legends
  2. Cr010.12-80
    Wns Number
    CR010.12
    Country / Post
    Costa Rica
    Date of Issue
    October 09, 2012
    Subject
    America UPAEP - Myths and Legends