It's from post 1954 and should have a date stamp underneath for example: 0954AX month year (September 1954). The parts that are missing that I can see are the wire guard and a steel mantle. You will also need new seals. Nice find as well enjoy.
@Kenny1769 AW Thacker was the Tilley agent in the USA from about 1957 until around 1968 if I recall correctly. Your Tilley R1 Radiator is likely from 1957 onwards therefore likely to have a date stamp on the bottom of the tank. Cheers Tony
Oil pump cup and pressureise tank Do a leak test by submerging to the pricker valve You need a "pre-heater" and a "mantle". washers will likely need replacing would not recomend the original ("asbestos" mantle for safety reasons) wire mesh ones are available) Put this in a google search (tilley heater diagram)
Looks to be in fine condition and a great find. Don't be tempted to hit the bowl with agressive polish. Try soap and water first..
Soap water worked great it’s really clean and inside of tank is spotless. I don’t think it’s had much use. Thanks
A draught shield is also generally used to concentrate the heat from the 'pre-heater'. Without it the pre-heating with the metho torch can be more difficult than expected. You can make one out of a suitable sized food can.