Architectural model in colour, Competition entry 066, City Hall and Square Competition, Toronto, 1958, by Leslie P. Cruise Jr. of the United States. Low sprawling, layered front stepping up to a twelve storey undulating tower.
Cruise, Leslie P., Jr.
Toronto Public Library's Digital Archive: http://www.torontopubliclibrary.ca/detail.jsp?Entt=RDMDC-CITYHALL-A-R6-09&R=DC-CITYHALL-A-R6-09
Nathan Philips Square (Toronto, Ont.)
Downtown (Toronto, Ont.)