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 Caribbean Netherlands in 2011

The 2011 issuing programme is not available.
  1. Bq021.11-80
    Wns Number
    BQ021.11
    Country / Post
    Caribbean Netherlands
    Date of Issue
    November 11, 2011
    Subject
    December Stamps - Christmas Bells