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 IO001.07

  1. Io001.07-80
    Wns Number
    IO001.07
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    March 29, 2007
    Subject
    Parrotfish - Common Parrotfish
  2. Io002.07-80
    Wns Number
    IO002.07
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    March 29, 2007
    Subject
    Parrotfish - Daisy Parrotfish
  3. Io003.07-80
    Wns Number
    IO003.07
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    March 29, 2007
    Subject
    Parrotfish - Bicolour Parrotfish
  4. Io004.07-80
    Wns Number
    IO004.07
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    March 29, 2007
    Subject
    Parrotfish - Bridled Parrotfish
  5. Io005.07-80
    Wns Number
    IO005.07
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    March 29, 2007
    Subject
    Parrotfish - Chlorurus strongylocephalus - Indian Ocean Steephead Parrotfish
  6. Io006.07-80
    Wns Number
    IO006.07
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    March 29, 2007
    Subject
    Parrotfish - Ember Parrotfish