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 Swaziland in 2012

The 2012 issuing programme is not available.
  1. Sz001.12-80
    Wns Number
    SZ001.12
    Country / Post
    Swaziland
    Date of Issue
    April 02, 2012
    Subject
    Valueless Locust and Grasshoppers - Southern African Desert Locust
  2. Sz002.12-80
    Wns Number
    SZ002.12
    Country / Post
    Swaziland
    Date of Issue
    April 02, 2012
    Subject
    Valueless Locust and Grasshoppers - Schistocerra solitaria
  3. Sz003.12-80
    Wns Number
    SZ003.12
    Country / Post
    Swaziland
    Date of Issue
    April 02, 2012
    Subject
    Valueless Locust and Grasshoppers - African Migratory Locust
  4. Sz004.12-80
    Wns Number
    SZ004.12
    Country / Post
    Swaziland
    Date of Issue
    April 02, 2012
    Subject
    Valueless Locust and Grasshoppers - Red Locust