Philatelic Specialists Society of Canada (PSSC)
British North America Philatelic Society
Canadian Philatelic Society of Great Britain
Canadian Stamp Dealers Association
Postal History Society of Canada
The Royal Philatelic Society of Canada
The Vincent Graves Greene Philatelic Research Foundation
Grand River Valley Philatelic Association
Greater Toronto Area Philatelic Alliance
Adminware
APS Manual of Philatelic Judging and Exhibiting
Deegam Publications
Postal History Corner
Retro Reveal
Unitrade Associates
Snap Magazine - Etobicoke
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