Model of a Time Signal

Model of a signal pole on a wooden baseboard. The model consists of a pole with four round metal grilles placed crosswise at the top, attached against a vertical plank. The grilles can be operated with a mechanism halfway up the vertical plank: by releasing a lever with a weight, locked when the grilles are in the vertical position, the grilles shoot into the horizontal position. The pole can also be shot with a chain running over pulleys, but not before the signal mechanism is removed.