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 IO001.05

  1. Io001.05-80
    Wns Number
    IO001.05
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    February 14, 2005
    Subject
    Green Turtle
  2. Io002.05-80
    Wns Number
    IO002.05
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    February 14, 2005
    Subject
    Hawksbill Turtle
  3. Io003.05-80
    Wns Number
    IO003.05
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    February 14, 2005
    Subject
    Green Turtle
  4. Io004.05-80
    Wns Number
    IO004.05
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    February 14, 2005
    Subject
    Hawksbill Turtle
  5. Io005.05-80
    Wns Number
    IO005.05
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    February 14, 2005
    Subject
    Hawksbill Turtle
  6. Io006.05-80
    Wns Number
    IO006.05
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    February 14, 2005
    Subject
    Green Turtle
  7. Io007.05-80
    Wns Number
    IO007.05
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    February 14, 2005
    Subject
    Green Turtle