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.

XJ001.16

Country / Post Bosnia and Herzegovina - Croatian Post Ltd Mostar
Date of Issue 20 March 2016
Primary theme Science & Technology (Physics & chemistry)
Subject 100th Anniversary of Albert Einstein's General Theory of Relativity
Width 36.0 mm
Height 26.0 mm
Denomination 0.90 BAM
Number in set 1
Layout/Format sheet of 8
Perforations 14 by 14
Stamp issuing authority Bosnia and Herzegovina - Croatian Post Ltd Mostar
Printer Zrinski d d Cakovec Croatia