Feb 2, 2023
Leon Leonidoff, production director of Radio City Music Hall, watches a dress rehearsal on the great stage from the twelfth row, February 2, 1933. The board in front of him contains a light chart, showing all of the 2,000 lighting combinations possible, with control buttons. It also has a microphone, making it possible to speak to any employee without having to leave his seat.
Photo: Associated Press via the Chattanooga Times Free Press