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 XJ001.10

  1. Xj001.10-80
    Wns Number
    XJ001.10
    Country / Post
    Bosnia and Herzegovina - Croatian Post Ltd Mostar
    Date of Issue
    February 01, 2010
    Subject
    XXI Winter Olympic Games Vancouver 2010
  2. Xj002.10-80
    Wns Number
    XJ002.10
    Country / Post
    Bosnia and Herzegovina - Croatian Post Ltd Mostar
    Date of Issue
    February 01, 2010
    Subject
    XXI Winter Olympic Games Vancouver 2010