Just before the WC Scott factory closed I was lucky enough to go round it. A very knowledgeable gentleman named Pat Whatley took us round - I believe he is co author of the book mentioned previously. I don't know how to contact him - or if he is still alive - but he has a wealth of knowledge and I think some of the records. I am sure that someone in the Birmingham gun trade or perhaps Bill Harding at the Proof House museum may have knowledge of his whereabouts.
John