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.

QA010.11

Country / Post Qatar
Date of Issue 9 December 2011
Primary theme Sport (Sporting events)
Subject Arab Games - Doha 2011
Width 26.5 mm
Height 31.5 mm
Denomination 0.50 QAR
Number in set 3 (show set)
Layout/Format sheet of 9
Perforations 13 by 13
Stamp issuing authority General Postal Corporation of State of Qatar
Printer Secura Singapore Pte Ltd Singapore
Connect to the web shop of the issuing stamp authority