radio tower

Man calculates with slide rule. Man on tractor drives up dirt road to…

New York City Hall – men on steps and smiling. Close-up of Michael…

This clip contains footage outside an air traffic control building and…

An electrician climbing down a pole. Men working on electrical poles.…

A Bolivian man pushes behind a plow being pulled by two large cows in…

Kind of montage of radio-related imagery. Women packaging records to…