Field Marshall Radiator and Fuel Caps

[rustexpert]

I have what I think is a Field Marshall radiator element; see picture. It seems to be in useable condition but is a heavy duty item and would be infinitely repairable unlike modern vehicle radiator items. I don't know which version it might be off but get in touch with me and I will send any detail dimensions to identify.
The fuel caps I'm not so sure about one is brass and one chromed for a filler neck approx. 3 3/8ths" diameter. They instantly seemed to me to resemble those on a Field Marshall but I don't have an example of the tractor to try them on!
P.M. me for more information if you require such things.
Would be able to take to Onslow Park or Dorset.