The cancelled NA Sheer Heart Attack shows

See this show for more information regarding why these shows had to be cancelled.
Here is a list of all cancelled shows:
25.02.1975	Pittsburgh, PA, USA	Stanley Theater
26.02.1975	Kutztown, PA, USA 	Keystone Hall
27.02.1975	Buffalo, NY, USA 	Kleinhans Music Hall
28.02.1975	Toronto, ON, CA 	Massey Hall
01.03.1975	Kitchener, ON, CA 	Kitchener Memorial Hall
02.03.1975	London, ON, CA 	London Arena
04.03.1975	Davenport, IA, USA 	Orpheum