1960s: Car Emerges from Tunnel on Road in City. View from Vehicle as it Drives Along Street. Men Pushing Wheelbarrows on Building Construction Site with City Scape in Background. Man Drives Tractor and Turns Steering Wheel.
United States, 1970s: cars drive in street. Students at outdoor graduation ceremony. Men work in factory. Wheels of tractor. Lady works in science lab. Digger moves earth. Man receives data printout. Man works at height.