What I know is what Jack Briggs told me when I was learning to build frames at Ellis Briggs in Shipley, West Yorkshire (very near Bradford which is next door to Leeds) in 1975. He said that they made frames there for Beryl Burton and that she specified those thin pencil stays. She lived somewhat close by. They most likely painted the frame there as well. Bill and Rodney did very nice work.
The bike business is full of racers getting custom frames made where they choose and then painting them their sponsors colors. What she rode would have nothing to do with where Anquetil frames were made that Ron Kitching either imported or had made in England. Briggs was more a true custom shop. It was an accessory operation in a bigger bike store. Andrew was (and still is!) the primary builder while Jack was the master builder that mostly oversaw the entire operation rather than being full time in the frame shop.
I drove the 15 miles to Bob Jackson's place in Leeds for a visit (Those 15 English miles on winding city roads seemed like the equivalent of 150 American miles). It was a completely different type of operation. George Foster oversaw maybe 5 or 6 young guys (just out of high school and early 20's maybe) and they were pretty efficient at getting some volume of frames out the door. They also did painting there are well. They would have had the capacity to do the numbers for Ron Kitching (in Harrogate about 20 some miles north of Shipley - a seemingly much shorter distance then the 15 miles to Leeds to the east).
Doug Fattic, who once lived in Esholt, near Shipley, near Bradford, near
Leeds, not far from Harrogate, West Yorkshire UK while learning but now in:
Niles, Michigan, USA
> From: <billydavid13@comcast.net>
> Hi all and Jerry. John Way's beautifully illustrated: The Bicycle,
> A Guide & Manual [Hamlyn 1973, UK] has a beautiful full page color photo of
> Beryl, on p.70, on a J.A. 5speed w/ a weirdly low saddle position. What's up
> w/ that? The bike is a kind of gunmetal grey w/ yellow panels and trim. The
> stays look thinner than any Jackson I've ever seen, but what do I know. Billy
> Ketchum; Chicago, IL; USA.