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.

All registered stamps issued by British Indian Ocean Territories in 2007

Show issuing programme...
  1. Io021.07-80
    Wns Number
    IO021.07
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    October 01, 2007
    Subject
    Birdlife International IV - Pomarine Skua