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 2007

The 2007 issuing programme is not available.
  1. Lk011.07-80
    Wns Number
    LK011.07
    Country / Post
    Sri Lanka
    Date of Issue
    April 20, 2007
    Subject
    Vesak
  2. Lk012.07-80
    Wns Number
    LK012.07
    Country / Post
    Sri Lanka
    Date of Issue
    April 20, 2007
    Subject
    Vesak
  3. Lk013.07-80
    Wns Number
    LK013.07
    Country / Post
    Sri Lanka
    Date of Issue
    April 20, 2007
    Subject
    Vesak
  4. Lk014.07-80
    Wns Number
    LK014.07
    Country / Post
    Sri Lanka
    Date of Issue
    April 30, 2007
    Subject
    Cricket World Cup Runners Up
  5. Lk015.07-80
    Wns Number
    LK015.07
    Country / Post
    Sri Lanka
    Date of Issue
    April 30, 2007
    Subject
    Cricket World Cup Runners Up
  6. Lk016.07-80
    Wns Number
    LK016.07
    Country / Post
    Sri Lanka
    Date of Issue
    May 22, 2007
    Subject
    Seashells of Sri Lanka - Textile Cone
  7. Lk017.07-80
    Wns Number
    LK017.07
    Country / Post
    Sri Lanka
    Date of Issue
    May 22, 2007
    Subject
    Seashells of Sri Lanka - Aquatile hairy triton
  8. Lk018.07-80
    Wns Number
    LK018.07
    Country / Post
    Sri Lanka
    Date of Issue
    May 22, 2007
    Subject
    Seashells of Sri Lanka - Rose branched Murex
  9. Lk019.07-80
    Wns Number
    LK019.07
    Country / Post
    Sri Lanka
    Date of Issue
    May 22, 2007
    Subject
    Seashells of Sri Lanka - Trapezium horse-conch
  10. Lk020.07-80
    Wns Number
    LK020.07
    Country / Post
    Sri Lanka
    Date of Issue
    May 26, 2007
    Subject
    World Scout Centenary