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 Sri Lanka in 2006

The 2006 issuing programme is not available.
  1. Lk081.06-80
    Wns Number
    LK081.06
    Country / Post
    Sri Lanka
    Date of Issue
    December 14, 2006
    Subject
    D.M. Rajapaksa
  2. Lk082.06-80
    Wns Number
    LK082.06
    Country / Post
    Sri Lanka
    Date of Issue
    December 18, 2006
    Subject
    Bio Diversity Complex and Religious Centre - Ambuluwawa
  3. Lk083.06-80
    Wns Number
    LK083.06
    Country / Post
    Sri Lanka
    Date of Issue
    December 18, 2006
    Subject
    Bio Diversity Complex and Religious Centre - Ambuluwawa

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