Architectural model in colour, Competition entry 401, City Hall and Square Competition, Toronto, 1958, by Viljo Revell of Finland. Two curved facing towers of unequal height with rounded low chamber between. This entry was a finalist and the winner of the competition. The original slide for this photo is incorrectly labelled Stage one.
Revell, Viljo, 1910-1964
Toronto Public Library's Digital Archive: http://www.torontopubliclibrary.ca/detail.jsp?Entt=RDMDC-CITYHALL-A-R5-01&R=DC-CITYHALL-A-R5-01
Nathan Philips Square (Toronto, Ont.)
Downtown (Toronto, Ont.)
Queen Street (Toronto, Ont.)