Hi Paul.
The Barry Davies, is a general all round bicycle, racing, going down the shops etc. The geometry is slightly more relaxed than the silver frame, which was really built for time-trialing.
Barry Davies sold various makes in his shop, but i believe all the bikes with his name on where built by either Bill, or Harry Quinn.
Bill and Harry built all of Barry Davies's race frames. Barry was a professional cyclo cross racer in the sixties and seventies. He raced for several professional race teams, with different makers names on the bikes, but they were all built by Bill and Harry.
Mike.
Ps. replyed to your PM.