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.

PT021.12

Country / Post Portugal
Date of Issue 28 March 2012
Primary theme Economy & Industry
Subject International Year of Cooperatives
Width 55.0 mm
Height 30.0 mm
Denomination 0.80 €
Number in set 27 (show set)
Layout/Format self adhesive sheet of 1
Perforations imperforate
Stamp issuing authority CTT Correios de Portugal SA
Printer Litho Formas
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