FYI The floor coil #'s for Otis sheet #4012, dated July 19, 1920 are #103594. The Non-Interference switch, the Aux. cam and Cam(cab top) coil are all #103594. The Self-Holding switch is #114536. The Directional switches are both #13470. The Acceleration switch is #13475. This information comes from the present coils on the machine and the original manufacturer.