There's a lot of info about Claud Butler here: http://homepage.ntlworld.com/nkilgariff/
If you can't find what you're looking for, the chap who has the site, Norman Kilgariff, is very helpful.
Bruce Dundee Scotland From: SeaOtter <firstname.lastname@example.org>
I recently bought a Claud track bike on eBay UK, from a chap in Belfast. Can anyone help me out with its authenticity and vintage. I just received it today, and it has an awful amateur repaint. Here's the link: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category170&item608810178
I can take more detailed pics.