Architectural model, Competition entry 279, City Hall and Square Competition, Toronto, 1958, by Perkins & Will of the United States. This entry was a finalist.
Perkins & Will
Toronto Public Library's Digital Archive: http://www.torontopubliclibrary.ca/detail.jsp?Entt=RDMDC-CITYHALL-A-R3-04&R=DC-CITYHALL-A-R3-04
Nathan Philips Square (Toronto, Ont.)
Downtown (Toronto, Ont.)