Woodrup's are still trading so should be able to help you with the number. Unfortunately Ernie & Barry Witcomb have just recently shut their shop. Try writing, their mail might be forwarded on by the Post office. The number doesn't look Witcomb to me but I might be wrong. Ron Cooper has been building for decades and would have built frames of various designs and fashions including this style. He is still about and would probably help. Certain some of the lads on the list will have these various addresses.