Stores ref. 5C/622. By Kerson. Vitreous enamel base with brass domed top and single toggle switch. 5/8 Amp, 250Volt. These can be used as standard lightswitches (please get a qualified electrician to fit) but we are reliably informed that they were used on pre-war and early war aircraft as electrical componant switches. It has a few small chips to the rim of the base, otherwise in very good used condition. Full Air Ministry and King's Crown markings. Stock code M14688.