Helmet Ears with Rangefinder Stalk

The original pieces were machined by Elstree Precision Co. Ltd, except the rangefinder stalk, which was custom made by Brian Archer. The right ear had a micro switch installed and when the rangefinder stalk was in the down position, it activated 2 red blinking LEDs on top of the rangefinder casing and 3 GoW (Grain of Wheat) type light bulbs inserted into the clear Perspex block.