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.

SI031.18

Country / Post Slovenia
Date of Issue 9 July 2018
Primary theme Architecture (Classical)
Subject EuroMed Postal - Houses of the Mediterranean
Width 30.0 mm
Height 42.5 mm
Denomination 1.26 €
Number in set 1
Layout/Format sheet of 25
Perforations 13.5 by 13.5
Stamp issuing authority Post of Slovenia
Printer Agencija za komercijalnu djelatnost doo Zagreb Croatia
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