The Lockheed Electra pictured on this cachet was used by Trans-Canada Airlines from its inception in 1937 when two 10A models from Canadian Airways. Three more of these models were ordered from Lockheed but they were quickly replaced by more powerful Lockheed 14's.
     The six cent airmail stamp on the cover was issued on June 15, 1938. It depicts a Mackenzie River steamer and a floatplane, probably a Bloch 120, belonging to Mackenzie Air Services. This same aircraft on skis is featured in the logo for Mackenzie Air Services included the Canadian Postal Museum collection.

The backstamp indicates the cover
arrived in Montreal on March 2, 1939.