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.

CA067.05

Country / Post Canada
Date of Issue 19 December 2005
Primary theme Energy (Wind)
National symbols (Flags)
Subject Flag - Wind Turbines at Pincher Creek, Alberta
Width 20.0 mm
Height 24.0 mm
Denomination 0.51 CAD
Number in set 5 (show set)
Layout/Format self adhesive booklet of 10 of 5 designs
Perforations imperforate
Stamp issuing authority Canada Post
Printer Canadian Bank Note
Contact the issuing stamp authority