Following on Mark Bulgier's comments on the Claud Butler frame a word of caution to prospective bidders.
I am almost certain this model and year dating is like mine equipped with an oversize bottom bracket which means if I'm correct some consideration should given to the replacment or purchase of new cups should they be required. The ball bearings are also larger than the normal at 5/16". they are easy to aquire but I'm not so sure about the cups.
Hope my intervention is of help to buyers and not any hinderence to the seller .
Doug Smith
North Dorset
Uk