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.

CA009.18

Country / Post Canada
Date of Issue 15 January 2018
Primary theme Minerology & Geology (Mountains & Geological features)
Geography & Meteorology (Seas, lakes & rivers)
Subject From Far and Wide - Percé Rock in Parc national de l'Île-Bonaventure-et-du-Rocher-Percé (Quebec)
Width 24.0 mm
Height 20.0 mm
Denomination Permanent
Number in set 23 (show set)
Layout/Format self adhesive booklet of 10 & 30
Perforations 13 by 13
Stamp issuing authority Canada Post
Printer Lowe-Martin
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