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 2013

The 2013 issuing programme is not available.
  1. Lk031.13-80
    Wns Number
    LK031.13
    Country / Post
    Sri Lanka
    Date of Issue
    November 14, 2013
    Subject
    Commonwealth Heads of government Meeting 2013
  2. Lk032.13-80
    Wns Number
    LK032.13
    Country / Post
    Sri Lanka
    Date of Issue
    November 14, 2013
    Subject
    Commonwealth Heads of government Meeting 2013
  3. Lk033.13-80
    Wns Number
    LK033.13
    Country / Post
    Sri Lanka
    Date of Issue
    November 27, 2013
    Subject
    Dr Tissa Abeysekara
  4. Lk034.13-80
    Wns Number
    LK034.13
    Country / Post
    Sri Lanka
    Date of Issue
    December 01, 2013
    Subject
    Christmas 2013
  5. Lk035.13-80
    Wns Number
    LK035.13
    Country / Post
    Sri Lanka
    Date of Issue
    December 01, 2013
    Subject
    Christmas 2013
  6. Lk036.13-80
    Wns Number
    LK036.13
    Country / Post
    Sri Lanka
    Date of Issue
    December 02, 2013
    Subject
    All Ceylon Moor's Association
  7. Lk037.13-80
    Wns Number
    LK037.13
    Country / Post
    Sri Lanka
    Date of Issue
    December 19, 2013
    Subject
    Dharmadasa Walpola
  8. Lk038.13-80
    Wns Number
    LK038.13
    Country / Post
    Sri Lanka
    Date of Issue
    December 21, 2013
    Subject
    Ven. Baddegama Wimalawansa Nayaka Thero
  9. Lk039.13-80
    Wns Number
    LK039.13
    Country / Post
    Sri Lanka
    Date of Issue
    December 23, 2013
    Subject
    50th Anniversary of Sri Lanka Administrative Service