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| CN Tower post card, circa 1977 |
The CN Tower is one of Toronto's most recognizable architectural structures. Built by CN Rail and opened in 1976, the 553m (1815ft.) communication and observation tower is a major Toronto landmark and tourist attraction. In 1995, it was declared one of the modern Seven Wonders of the World by the American Society of Civil Engineers. When CN transferred ownership of the tower to the federal crown corporation Canada Lands in 1995, the tower's official name was changed to Canada's National Tower , but this name is not commonly used. The CN Tower was the highest freestanding structure in the world until 2007.
The World's Highest Post Office Cachet
The 1977 post card shown below shows that visitors were able to post mail at the top of the tower to which a souvenir cachet was applied.
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| Toronto to Thalwil, Switzerland, September 14, 1977 |
THE WORLD'S HIGHEST POST OFFICE
CN TOWER
The Millennium Stamp
1. Millennium Collection Album
CN Tower was one of 68 Millennium stamps first issued in a hardbound book, Canada Post The Millennium Collection : Expressions of a People, on September 15, 1999. The stamps were printed two to a page.
Canada in Space and CN Tower stamps were printed on the same page
2. Millennium Collection Souvenir Sheet1. Millennium Collection Album
CN Tower was one of 68 Millennium stamps first issued in a hardbound book, Canada Post The Millennium Collection : Expressions of a People, on September 15, 1999. The stamps were printed two to a page.
Canada Post Corporation re-issued the Millennium stamps in panes of 4 stamps issued over a three month period from December 17, 1999 to March 17, 2000. The souvenir sheet with the CN Tower stamp was released on March 17, 2000.
