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.

CA049.12

Country / Post Canada
Date of Issue 27 June 2012
Primary theme Olympic Games (Summer Olympics)
Subject London 2012
Width 40.0 mm
Height 24.0 mm
Denomination P
Number in set 1
Layout/Format self adhesive booklet of 10
Perforations 13 by 13
Stamp issuing authority Canada Post
Printer Lowe-Martin
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