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.

XE002.10

Country / Post Azores
Date of Issue 7 May 2010
Primary theme EUROPA
Literature, Press and Comics (Writers)
Subject Europa 2010 - Children's Books
Width 30.6 mm
Height 40.0 mm
Denomination 0.68 €
Number in set 2 (show set)
Layout/Format miniature sheet of 2 of 2 designs
Perforations 13 by 13
Stamp issuing authority CTT Correios de Portugal SA
Printer Cartor Security Printers
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