Wally Green, the ex-speedway rider (for West Ham), made frames at 21 Vivian Avenue, Hendon Central N.W.4. He also built for other manufacturers, according to someone who worked for him:
"Some of the other trade names we built for:
Sid Mottram, Jackson of Leeds, Carter & Hall (Portsmouth), Shepherds of Poole, Hindes, Ernie Whitcombe, Fred Dean, Claud Butler, Dave Davey, Jensen of South Africa, Hobbs Brothers, Lomas of Oxford, Alan Shorter, Ivor Clark of Harrow, Mal Rees. There must have been many others that I can't remember off hand. We also built under our own name for a very large percentage of NW London racing cyclists.
We also did quite a lot of frame repairs. Mainly cutting or melting out corroded seat pillars, handlebar stems and what we called double tubers. These were where the rider had invariably gone into the back of a car or bus and bent the top and down tubes. These were cut out and completely replaced. The frames we built for Claud Butler were when his business was nearing its end (it was alleged that he was drinking all the profits of the firm!)."