It is a Lister Start-O-Matic. Manufactured in 1958. 230 volt output 4 kw at 850 rpm This single cylinder Diesel, known as an EIGHT ONE and is driving a generator with control gear that was made for Use where the "mains" supply was not available. It starts automatically when a load of over 40 watts is applied (by switching on a light bulb) and shuts down automatically when all load is taken off.
