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.

RS003.17

Country / Post Serbia
Date of Issue 6 February 2017
Primary theme Science & Technology (Famous scientists)
Science & Technology (Physics & chemistry)
Subject Definitive stamp - Mileva Maric Ajnstajn
Width 23.5 mm
Height 25.0 mm
Denomination 23.00 RSD
Number in set 2 (show set)
Layout/Format sheet of 100
Perforations 13.25 by 13.25
Stamp issuing authority Public Enterprise of PTT Srbija
Printer Forum Novi Sad