Originally Posted by
southpawboston
You can always shoot Peter Weigle an email, he built for Witcomb for a few years in the early 70s. And even if the frame predates his tenure there, he might have some insight regarding its origins.
Forum member RobE30 brought the bike to the Spectrum shop, to see what Tom Kellogg could say; Kellogg took photos and emailed them to Weigle, and then called him up and discussed it. I wasn't there, so I may have some details wrong. At any rate Weigle could only confirm it wasn't a Witcomb USA, but would not speculate whether it was a London one.