The Music Master Dual Dial was manufactured by Melhuish Radio Co. in about 1950.
Valves (8 + magic eye):
Frequency Bands: 2
Chassis Notes(most schematics can be clicked to download a full size version) Appears to be an 8-valve + magic eye chassis - rimlock valves and octal rectifier? Probably 6X5. Eye could be an EM34. Later model IF transformers. No ARTS&P label visible, so chassis date could be towards the end of that regime.