Dr. Wadsworth's 12½-inch reflector in Simcoe, Ontario. This photo was published in the RASC Selected Papers and Proceedings, 1902-03. Information was given on pp.58-59:
Dr. Wadsworth’s observatory is ten-sided, the floor 15 feet across, its walls 7 feet high, wooden, with an iron track for the dome, made of stout canvas. Its equipment is as follows:—