CANADA: Semi-Official Airmail # CL41 on cover SKU # 138
Semi-official Airmail by Western Canada Airways Ltd., the Jubilee flight of July 1, 1927, from Lac du Bonnet, Manitoba. This cover is PILOY SIGNED
Stamp CL 41 was authorized for use on ONE DAY ONLY, and is the only stamp in Canadian history to be allowed usage on only one day!!
A unique piece of Canadian Air Mail/Postal history.