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.

BW016.07

Country / Post Botswana
Date of Issue 13 October 2007
Primary theme Education (Universities)
Subject University of Botswana - Okavango Research
Width 40.0 mm
Height 30.0 mm
Denomination 4.10 BWP
Number in set 4 (show set)
Layout/Format sheet
Perforations 14 by 14
Stamp issuing authority Botswana Post
Printer
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