105 Regent Street West, Toronto (rear view) as it appeared in 2010.
Bert Topham's first dome, "Topham's Top" which he purchased second-hand and trucked across Toronto, was perched above the sunroom (see Ingalls' Amateur Telescope Making, p.??? and Scientific American, November 1937).
105 Regent Street West, Toronto as it appeared in 2010. John Pilkington and Bert Topham built this house. Bert's first observatory, "Topham's Top" was perched above a sunroom at the rear of this house. Photo courtesy of Lynn Kirk.