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.

CA006.18

Country / Post Canada
Date of Issue 15 January 2018
Primary theme Flora (Trees)
Subject From Far and Wide - Cathedral Grove in MacMillan Park (British Columbia)
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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