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.

XH003.15

Country / Post Bosnia and Herzegovina - Republic of Srpska
Date of Issue 16 February 2015
Primary theme Science & Technology (Physics & chemistry)
Subject International Year of Light
Width 35.0 mm
Height 26.0 mm
Denomination 1.70 BAM
Number in set 1
Layout/Format sheet of 8
Perforations 13.75 by 13.75
Stamp issuing authority Enterprise for Postal Traffic of Republic of Srpska, Banja Luka
Printer Forum-Novi Sad Serbia & Montenegro
Connect to the web shop of the issuing stamp authority