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.

XJ028.18

Country / Post Bosnia and Herzegovina - Croatian Post Ltd Mostar
Date of Issue 1 December 2018
Primary theme Holy Days & Celebrations (Christmas & Easter)
Holy Days & Celebrations (New Year)
Subject Christmas 2018 and the New Year
Width 48.28 mm
Height 35.5 mm
Denomination 0.90 BAM
Number in set 2 (show set)
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