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.

RS048.17

Country / Post Serbia
Date of Issue 6 October 2017
Primary theme Royalty & Monarchies
Subject 800 Years since the Coronation of Stefan Prvovenčani as the First-Crowned King of Serbia
Width 30.0 mm
Height 37.5 mm
Denomination 23.00 RSD
Number in set 1
Layout/Format sheet of 23
Perforations 13.25 by 13.25
Stamp issuing authority Public Enterprise of PTT Srbija
Printer Zin Belgrade