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.

Stamps issued with CW039.11

  1. Cw039.11-80
    Wns Number
    CW039.11
    Country / Post
    Curaçao
    Date of Issue
    July 11, 2011
    Subject
    Technology - Social Media
  2. Cw040.11-80
    Wns Number
    CW040.11
    Country / Post
    Curaçao
    Date of Issue
    July 11, 2011
    Subject
    Technology - Fibre Optics
  3. Cw041.11-80
    Wns Number
    CW041.11
    Country / Post
    Curaçao
    Date of Issue
    July 11, 2011
    Subject
    Technology - Fibre Optics
  4. Cw042.11-80
    Wns Number
    CW042.11
    Country / Post
    Curaçao
    Date of Issue
    July 11, 2011
    Subject
    Technology - Cloud computing