Brian. That would probably be a Ferguson TED20, built between 1949 and 1956 and designed to run on Vaporising Oil. Similar to the petrol TEA20, they had a lower compression ratio and in Australia ran on power kerosene. They had a two compartment fuel tank, start on petrol then change over to power kero.
aviate1138. Goody - knew I'd get a bite and manage to hook one!! With winter coming on in the UK I guess you'll be looking forward to that warm hops flavoured barley soup!