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.

SI037.18

Country / Post Slovenia
Date of Issue 28 September 2018
Primary theme Environment & Conservation (National Parks)
Geography & Meteorology (Seas, lakes & rivers)
Subject Nature Parks in Slovenia - The Pivška Seasonal Lakes Nature Park
Width 42.6 mm
Height 29.82 mm
Denomination 1.30 €
Number in set 1
Layout/Format miniature sheet of 1
Perforations 14 by 14
Stamp issuing authority Post of Slovenia
Printer Agencija za komercijalnu djelatnost doo Zagreb Croatia
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