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.

XH029.11

Country / Post Bosnia and Herzegovina - Republic of Srpska
Date of Issue 12 April 2011
Primary theme Geography & Meteorology (Artic and Antarctica)
Explorers & Navigation
Subject 150th Anniversary of the Birth of Fridtjof Nansen
Width 28.5 mm
Height 35.0 mm
Denomination 1.50 BAM
Number in set 1
Layout/Format sheet of 8
Perforations 13.5 by 13.5
Stamp issuing authority
Printer
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