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 Paraguay in 2004

The 2004 issuing programme is not available.
  1. Py021.04-80
    Wns Number
    PY021.04
    Country / Post
    Paraguay
    Date of Issue
    October 22, 2004
    Subject
    MERCOSUR - Water, a resource in short supply
  2. Py022.04-80
    Wns Number
    PY022.04
    Country / Post
    Paraguay
    Date of Issue
    October 22, 2004
    Subject
    Agriculture - Maize
  3. Py023.04-80
    Wns Number
    PY023.04
    Country / Post
    Paraguay
    Date of Issue
    October 22, 2004
    Subject
    Agriculture - Cotton
  4. Py024.04-80
    Wns Number
    PY024.04
    Country / Post
    Paraguay
    Date of Issue
    October 22, 2004
    Subject
    Agriculture - Soya
  5. Py025.04-80
    Wns Number
    PY025.04
    Country / Post
    Paraguay
    Date of Issue
    November 12, 2004
    Subject
    Christmas 2004
  6. Py026.04-80
    Wns Number
    PY026.04
    Country / Post
    Paraguay
    Date of Issue
    November 12, 2004
    Subject
    Christmas 2004
  7. Py027.04-80
    Wns Number
    PY027.04
    Country / Post
    Paraguay
    Date of Issue
    November 16, 2004
    Subject
    40th Anniversary of Latin American Parliament
  8. Py028.04-80
    Wns Number
    PY028.04
    Country / Post
    Paraguay
    Date of Issue
    December 10, 2004
    Subject
    Itaipu Binational Entity - 30th Anniversary of it's Creation
  9. Py029.04-80
    Wns Number
    PY029.04
    Country / Post
    Paraguay
    Date of Issue
    December 10, 2004
    Subject
    Itaipu Binational Entity - 30th Anniversary of it's Creation