A 5 Valve Battery Portable

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Does anyone know who made this or what the model was called? I would like to get a circuit diagram or at least a correct valve line up. Please e-mail me at the address given in 'Contact' below if you can help.

The valve line up as fitted, from aerial to speaker, is PM1HL, 210HL, 215P, 210HL, and an unmarked output triode. I have no idea if this is correct or not.

The box is a leather giant attache case, about the same shape and size as a wind up gramophone. The internal panels appear to be a form of Paxolin ot Tufnol with and immitation wood grain pattern. The valve bases are formed in one of these sheeets with a primitive PCB carrying the filament supply on two brass strips. The sockets are 'eyeleted' onto the board.

I have found some similar sets:-

A Burndept set from 1930

A Rolls set from c. 1928