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 PE009.16

  1. Pe008.16-80
    Wns Number
    PE008.16
    Country / Post
    Peru
    Date of Issue
    December 21, 2016
    Subject
    Cajamarca, 30 years listed as Historic and Cultural Heritage of the Americas by the OAS - Santa Apolonia hill
  2. Pe009.16-80
    Wns Number
    PE009.16
    Country / Post
    Peru
    Date of Issue
    December 21, 2016
    Subject
    Cajamarca, 30 years listed as Historic and Cultural Heritage of the Americas by the OAS - St. Catherine Cathedral