Philips have owned Mullard since the 1920's. Mullard generally made components, valves resisters etc. The Mullard radio company was I understand based in Australia.
Looks like a nice set. Here in the US the modern FM band came about in about 1946, just after the war, but didn't become popular until the 1970's and 80's for anything other than classical music. Still plenty to listen to on AM and FM, though some broadcasts are simulcast to frequencies on both bands. Philips actually built some sets in the US, but wasn't allowed to sell them under their own name due to a dispute with Philco. They were sold as Norelco or private label instead. I've personally got a few Philips sets, 2 from the UK, one branded Stella, and a made in US GLF (local agricultural store) branded set.
Has anyone ever thought of rebuilding this radio to use tubes designed in 1957 with a heater voltage of 12V and a B+ of 12V and run it of a 12V Wall Wart and capacitors will last longer.
