Stores ref. 5A/831. By GEC. Vitreous enamel base with brass domed top and single toggle switch. The reference refers to 'Ground Lighting & Miscellaneous Equipment'. These could possibly be used as standard lightswitches (please ask a qualified electrician for advice). It has a few small chips to the rim of the base and some wear to the brass, otherwise in good used condition. Nice large clear Air Ministry and King's crown markings. Stock code M21323.