Directly below the glass panel is a heavy BRASS lever that controls switch mechanism housed in the unit. The indicator arm is activated by means of a relay in the rear of the unit. This unit measures 12" Deep x 5 3/4" Wide x 9 3/4 High (Measured at the front).The body and removable top cover are made of CAST IRON with many layers of grey paint. The top cover can be locked by means of a fixed hasp at the rear of the unit. I don't know what the operating voltage of this unit is. The item "Vintage Railroad Semaphor Indicator" is in sale since Monday, March 9, 2020. This item is in the category "Collectibles\Transportation\Railroadiana & Trains\Hardware\Lanterns & Lamps".
The seller is "tao8801" and is located in Massapequa, New York. This item can be shipped to United States.