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.

SI010.09

Country / Post Slovenia
Date of Issue 27 March 2009
Primary theme Flora (Flowers - General)
Subject Cornflower (Centaura cyanus)
Width 40.0 mm
Height 30.0 mm
Denomination 0.23 €
Number in set 4 (show set)
Layout/Format sheet of 25
Perforations 13 by 13
Stamp issuing authority Post of Slovenia
Printer Oriental Press Bahrain
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