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 Portugal in 2004

The 2004 issuing programme is not available.
  1. Pt001.04-80
    Wns Number
    PT001.04
    Country / Post
    Portugal
    Date of Issue
    March 19, 2004
    Subject
    400th Anniversary of the Birth of King João of Portugal
  2. Pt002.04-80
    Wns Number
    PT002.04
    Country / Post
    Portugal
    Date of Issue
    March 19, 2004
    Subject
    400th Anniversary of the Birth of King João of Portugal
  3. Pt003.04-80
    Wns Number
    PT003.04
    Country / Post
    Portugal
    Date of Issue
    March 22, 2004
    Subject
    The Lisbon Oceanarium - Phyllopteryx taeniolatus
  4. Pt004.04-80
    Wns Number
    PT004.04
    Country / Post
    Portugal
    Date of Issue
    March 22, 2004
    Subject
    The Lisbon Oceanarium - Spheniscus magellanicus
  5. Pt005.04-80
    Wns Number
    PT005.04
    Country / Post
    Portugal
    Date of Issue
    March 22, 2004
    Subject
    The Lisbon Oceanarium - Hypsypops rubicundus
  6. Pt006.04-80
    Wns Number
    PT006.04
    Country / Post
    Portugal
    Date of Issue
    March 22, 2004
    Subject
    The Lisbon Oceanarium - Enhydra lutris
  7. Pt007.04-80
    Wns Number
    PT007.04
    Country / Post
    Portugal
    Date of Issue
    March 22, 2004
    Subject
    The Lisbon Oceanarium - Carcharias taurus
  8. Pt008.04-80
    Wns Number
    PT008.04
    Country / Post
    Portugal
    Date of Issue
    March 22, 2004
    Subject
    The Lisbon Oceanarium - Fratercula arctica
  9. Pt009.04-80
    Wns Number
    PT009.04
    Country / Post
    Portugal
    Date of Issue
    March 22, 2004
    Subject
    The Lisbon Oceanarium - Eudyptes chrysolophus
  10. Pt010.04-80
    Wns Number
    PT010.04
    Country / Post
    Portugal
    Date of Issue
    April 06, 2004
    Subject
    Teams participating in the UEFA EURO 2004

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