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 BO013.09

  1. Bo013.09-80
    Wns Number
    BO013.09
    Country / Post
    Bolivia
    Date of Issue
    August 28, 2009
    Subject
    10 Years since the Conquest of Mount Everest by a Bolivian
  2. Bo014.09-80
    Wns Number
    BO014.09
    Country / Post
    Bolivia
    Date of Issue
    August 28, 2009
    Subject
    10 Years since the Conquest of Mount Everest by a Bolivian