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.

HK009.12

Country / Post Hong Kong (PRC)
Date of Issue 27 March 2012
Primary theme Education (Schools)
Subject 150th Anniversary of Queen's College
Width 36.0 mm
Height 41.0 mm
Denomination 10.00 HKD
Number in set 1
Layout/Format miniature sheet of 1
Perforations 13.25 by 13.25
Stamp issuing authority Hongkong Post
Printer Joh Enschedé BV, the Netherlands
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