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 2017

The 2017 issuing programme is not available.
  1. Pt121.17-80
    Wns Number
    PT121.17
    Country / Post
    Portugal
    Date of Issue
    October 13, 2017
    Subject
    50 Years of the Catholic University of Portugal (Universidade Católica Portuguesa)
  2. Pt122.17-80
    Wns Number
    PT122.17
    Country / Post
    Portugal
    Date of Issue
    October 13, 2017
    Subject
    50 Years of the Catholic University of Portugal (Universidade Católica Portuguesa)
  3. Pt123.17-80
    Wns Number
    PT123.17
    Country / Post
    Portugal
    Date of Issue
    October 19, 2017
    Subject
    UNESCO Creative Cities - Idanha-a-Nova
  4. Pt124.17-80
    Wns Number
    PT124.17
    Country / Post
    Portugal
    Date of Issue
    October 19, 2017
    Subject
    UNESCO Creative Cities - Óbidos

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