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.

Issuing programme for Azores, 2009

Show registered stamps...
Date of Issue Subject Number In Set
22 April Lagoons (miniature sheets x2) 4
8 May Europa 2009 - Astronomy (miniature sheet) 1

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