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.

RS041.17

Country / Post Serbia
Date of Issue 1 June 2017
Primary theme Flora (Trees)
Subject European Nature Protection - Aythya nyroca
Width 37.5 mm
Height 30.0 mm
Denomination 74.00 RSD
Number in set 2 (show set)
Layout/Format sheet of 8
Perforations 13.25 by 13.25
Stamp issuing authority
Printer