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 HU100.04

  1. Hu127.04-80
    Wns Number
    HU127.04
    Country / Post
    Hungary
    Date of Issue
    September 24, 2004
    Subject
    A little Hungarian Chess History
  2. Hu128.04-80
    Wns Number
    HU128.04
    Country / Post
    Hungary
    Date of Issue
    September 24, 2004
    Subject
    A little Hungarian Chess History
  3. Hu129.04-80
    Wns Number
    HU129.04
    Country / Post
    Hungary
    Date of Issue
    September 24, 2004
    Subject
    A little Hungarian Chess History
  4. Hu130.04-80
    Wns Number
    HU130.04
    Country / Post
    Hungary
    Date of Issue
    September 24, 2004
    Subject
    A little Hungarian Chess History