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 2004

The 2004 issuing programme is not available.
  1. Io001.04-80
    Wns Number
    IO001.04
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    February 16, 2004
    Subject
    Fisheries Patrol - M.V. Pacific Marlin
  2. Io002.04-80
    Wns Number
    IO002.04
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    February 16, 2004
    Subject
    Fisheries Patrol - Marlin
  3. Io003.04-80
    Wns Number
    IO003.04
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    February 16, 2004
    Subject
    Fisheries Patrol - Skipjack Tuna
  4. Io004.04-80
    Wns Number
    IO004.04
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    February 16, 2004
    Subject
    Fisheries Patrol - Yellowfin Tuna
  5. Io005.04-80
    Wns Number
    IO005.04
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    February 16, 2004
    Subject
    Fisheries Patrol - Swordfish
  6. Io006.04-80
    Wns Number
    IO006.04
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    February 16, 2004
    Subject
    Fisheries Patrol - Bigeye Tuna
  7. Io007.04-80
    Wns Number
    IO007.04
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    June 21, 2004
    Subject
    Birds definitives - Madagascar Fody
  8. Io008.04-80
    Wns Number
    IO008.04
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    June 21, 2004
    Subject
    Birds definitives - Barred Ground Dove
  9. Io009.04-80
    Wns Number
    IO009.04
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    June 21, 2004
    Subject
    Birds definitives - Indian Mynah
  10. Io010.04-80
    Wns Number
    IO010.04
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    June 21, 2004
    Subject
    Birds definitives - Cattle Egret