There's a lot of info about Claud Butler here:
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:
I can take more detailed pics.