[AlanC]

Looks more like a homebrew 1V1 TRF receiver to me, heavily screened RF stage and with what looks like perhaps preset and bandspread tuning for each tuned circuit In the post war era there was tons of ex military gear advertised in magazines that you could buy for very little and strip for the chassis and components. Bardwells here in Sheffield still had odd bits of it 'when I were a lad' in the late 60's/early 70's. There's a big hole in the chassis partly covered by other components which says it's not a professional build. As for the circuit, it's possibly a 'blueprint' that radio mags in the 50's were fond of publishing. I agree it looks kind of military except that I'd expect to see component designations like R1A, C2A etc. Very interesting!