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 MT018.09

  1. Mt018.09-80
    Wns Number
    MT018.09
    Country / Post
    Malta
    Date of Issue
    July 15, 2009
    Subject
    Cruise Liners - Seabourne Pride
  2. Mt019.09-80
    Wns Number
    MT019.09
    Country / Post
    Malta
    Date of Issue
    July 15, 2009
    Subject
    Cruise Liners - Brilliance of the Seas
  3. Mt020.09-80
    Wns Number
    MT020.09
    Country / Post
    Malta
    Date of Issue
    July 15, 2009
    Subject
    Cruise Liners - Costa Magica and Costa Atlantica
  4. Mt021.09-80
    Wns Number
    MT021.09
    Country / Post
    Malta
    Date of Issue
    July 15, 2009
    Subject
    Cruise Liners - MSC Splendida