Series consists of photographs made during trips to the Soviet Union and Japan; colour negatives made during the First International Energy Exhibition, Sao Paulo, Brazil; miscellaneous materials relating to the Gardiner Expressway, Toronto; miscellaneous materials relating to Oswald Margison who, in 1958 and 1964, visited the Soviet Union as part of an official group of Canadian businessmen. The photographs depict meetings and people encountered at these meetings, some of the places visited, and typical tourist photos.
Also included are photographs of the First Red Chinese International Trade Show, Tokyo, April, 1964 with views of a number of exhibitors as well as of the Canada Frontier Water and Power booth. Other photos depict University of Toronto 1920 Engineering Class, including Oswald Margison; portrait of Oswald Margison; Oswald Margison receiving life membership in the Association of Consulting Engineers of Canada, January 1968; unsigned portrait of Arthur D. Margison by Yousuf Karsh; views of a model of the Gardiner Expressway, Toronto, Ontario; view of a hanger at St. Hubert, Québec, under construction; seven views of the National Aeronautical Establishment hanger under construction at Uplands Airbase, Ottawa, Ontario, 1952.
The series also contains photos taken by or for Arthur Margison during the course of activities involving several of his business ventures; photographs taken on Prince Edward Island showing a farm, cattle, and a number of businessmen overlooking the land; interior and exterior views of the Charlottetown Hotel, Charlottetown, Prince Edward Island; view of a scrollcase, used in hydroelectric stations, under construction; interior of a hydraulics lab; Canada Frontier Water and Power Ltd. aircraft CF-WMN at Frobisher Airport; the "Director of Argus Corporation and his friends at Volgograd", 1964; a certificate awarded by the United States International Exhibition, 1876, to the Barber and Harris Company, Meaford, Ontario, for a water wheel; Dominion Stores Distribution Centre, Etobicoke, Ontario, showing phases of construction and of the building in use; interior views of the Consumer's Gas Company new services facility, Toronto, Ontario; views of the facilities of the Barber Hydraulic Turbine Lab, Port Dalhousie; views of the buildings at the Research Centre, Fuels and Mining Practises Division, Department of Energy, Mines and Resources, Ottawa, Ontario; underground construction views of the North American Air Defence (NORAD) Headquarters Facility, North Bay, Ontario, 1959-1961; RCAF Supply Depot, Downsview, Ontario, 1953; a view of the Lakeshore Expressway in model form, Toronto; unidentified aerial and ground views of a river and terrain for Canada Frontier Water and Power Ltd., 1971; aerial and ground views of the Cogswell Interchange, Halifax, 1969; a second portrait of A.D. Margison by Yousuf Karsh.