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 Serbia
Date of Issue 10 July 2008
Primary theme Science & Technology
Education (Universities)
Subject Science - 200 Years of the founding of the Grand School in Belgrade
Width 35.0 mm
Height 31.9 mm
Denomination 20 CSD
Number in set 1
Layout/Format sheet of 8
Perforations 13.25 by 13.25
Stamp issuing authority Jugomarka
Printer Forum Novi Sad