A little history, the frame was purchased from a gentleman near Nottingham and he'd had it resprayed and enamelled in racing green at some point in his ownership, there are no badges or stickers to certify the frame material but confident it is Reynolds 531 & the wrapover seat-stays are very very nice as is the lugwork. The frame number is E6007 which is embossed on the underside of the BB shell. It was originally fitted with a Williams chainset (dated 1963).
The dropouts are Zeus, lugs are nervex, I asked the owner of a Carlton dedicated website(http://www.carltoncycles.me.uk
) what it was he thought it was and he replied it was built somewhere between 1958-60 & possibly a Super Python. I do not have any evidence to support this so please assess on what you can see. Whilst the parts are not period I think the selection make for an easy ride.
Seat tube is 60cm c-c (60.5c-t), 57cm c-c top tube. rear spread is 130mm. Takes a 27.2mm seatpost and the picture below sees the overal bike weight including pump and bag at circa 11kg.