doi:10.7916/d8-mmqa-sw03Chicago DynamicBelanger, Paul (Film director)video recordingsmoving imageArchitectureSkyscrapersChicago (Ill.)A history of the strucutral steel building frame and the resulting advent of steel curtain wall construction originally appearing on October 29, 1957 on WTTW, Chicago, Illinois: featuring George Edson Danford / Presented to Leopold Arnaud