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 Singapore in 2004

Show issuing programme...
  1. Sg061.04-80
    Wns Number
    SG061.04
    Country / Post
    Singapore
    Date of Issue
    October 20, 2004
    Subject
    Chek Jawa - Oriental Pied Hornbill
  2. Sg062.04-80
    Wns Number
    SG062.04
    Country / Post
    Singapore
    Date of Issue
    October 20, 2004
    Subject
    Chek Jawa - Knobbly Sea Star
  3. Sg063.04-80
    Wns Number
    SG063.04
    Country / Post
    Singapore
    Date of Issue
    October 20, 2004
    Subject
    Chek Jawa - Common Seahorse

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