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.

HK032.12

Country / Post Hong Kong (PRC)
Date of Issue 27 July 2012
Primary theme Olympic Games (Summer Olympics)
Subject Games of the XXX Olympiad London 2012
Width 35.0 mm
Height 35.0 mm
Denomination 5.00 HKD
Number in set 4 (show set)
Layout/Format sheet of 25
Perforations 13.75 by 13.75
Stamp issuing authority Hongkong Post
Printer Joh Enschedé BV, the Netherlands
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