Early 20thC Forster Equipment Traffic Guardian Lamp

This style of lamp was one of the earliest dry battery lamps and were used extensively by the Police, railways etc, it was made by Forster equipment Co Ltd of Whetstone Leicestershire, constructed from a black painted metal with a bullseye glass front, this one comes in very good condition for its age with signs of use, as it is battery operated it has not been tested, it measures 6 inches long.