Hi Grimlin,
I have a 1949 Rover car and it has a brass plate 2.75" x 1.5" affixed to the radiator showing 'Victory Radiator and Welding Works, Woodgate, Leicester - All types built and repaired, radiators built to order'. The car was registered new in February 1949 at Burton Road Garage Melton Mowbray and the brass plate is stamped Dec 1949 so perhaps the car's radiator needed attention a few months from new. Like you I'd like to know more about the works.