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.

QA001.11

Country / Post Qatar
Date of Issue 17 May 2011
Primary theme Post & Philately
Subject Golden Jubilee of the First Postal Agency
Width 50.0 mm
Height 31.5 mm
Denomination 0.50 QAR
Number in set 1
Layout/Format sheet of 8
Perforations 14 by 14
Stamp issuing authority General Postal Corporation of State of Qatar
Printer Joh Enschedé Security Printers
Connect to the web shop of the issuing stamp authority