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.


Country / Post Slovenia
Date of Issue 25 January 2019
Primary theme Literature, Press and Comics (Writers)
Subject Prominent Personalties - Alma M. Karlin - 130th anniversary of her birth and centenary of her departure on her journey around the world
Width 29.82 mm
Height 42.6 mm
Denomination 0.63 €
Number in set 1
Layout/Format sheet of 25
Perforations 14 by 14
Stamp issuing authority Post of Slovenia
Printer Agencija za komercijalnu djelatnost doo Zagreb Croatia
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