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.

CA109.18

Country / Post Canada
Date of Issue 2 November 2018
Primary theme Holy Days & Celebrations (Christmas & Easter)
Subject Christmas - Warm and cosy - Socks
Width 22.0 mm
Height 24.0 mm
Denomination Permanent
Number in set 7 (show set)
Layout/Format self adhesive booklet of 12
Perforations 14 by 14
Stamp issuing authority Canada Post
Printer Colour Innovations
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