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 BG008.08

  1. Bg007.08-80
    Wns Number
    BG007.08
    Country / Post
    Bulgaria
    Date of Issue
    April 22, 2008
    Subject
    Europa 2008 - The Letter
  2. Bg008.08-80
    Wns Number
    BG008.08
    Country / Post
    Bulgaria
    Date of Issue
    April 22, 2008
    Subject
    Europa 2008 - The Letter