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Saint Lawrence Seaway Invert
Postally Used Fake on Cover

Faked Invert on Cover

     According the editors of the 1999 edition of the Unitrade Specialized Catalogue of Canadian Stamps approximately 400 copies of the Seaway Comemorative were issued with inverted centres. There are fourteen recorded covers or cards with this error properly used. This “fake” was probably intended as a prank: the unlikely placement of a regular stamp beside an invert is the first clue that this is not real.

Faked Invert on Cover

On January 2, 2015 Antigua and Barbuda issued a souvenir sheet depicting
the famous "St. Lawrence Seaway invert" as part of its rare stamps series.


Bileski, Kasimir, et. al. UNITRADE Specialized Catalogue of Canadian Stamps 1999. Toronto: The Unitrade Press, 1998.

"Canada." Standard Postage Stamp Catalogue. 1997.

Molson, Kenneth M. Canada's National Aviation Museum. Ottawa: National Museum of Science and Technology, 1988.



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