McCausland Stained Glass
This magnificent dome represents an extensive legacy of stained glass produced by the McCausland family and their employees for buildings throughout Canada. In business under various company names since 1856, the Toronto-based firm Robert McCausland Limited is credited with the earliest and most numerous examples of Canadian stained glass and the longest record for glasswork in North America. Richly adorned with mythological figures and provincial emblems, the dome was executed in 1885 by Robert McCausland, while working for his father, Joseph, the firm's founder.
Plaque via Alan L. Brown's site Toronto Plaques. Full page here.