Joined: Nov 2006
Posts: 19,810
Likes: 597
From: NJ, NYC, LI
Bikes: 1940s Fothergill, 1959 Allegro Special, 1963? Claud Butler Olympic Sprint, Lambert 'Clubman', 1974 Fuji "the Ace", 1976 Holdsworth 650b conversion rando bike, 1983 Trek 720 tourer, 1984 Counterpoint Opus II, 1993 Basso Gap, 2010 Downtube 8h, and...
As was said before. The lugs are Carlton design called "crespera." I don't know what bike models they used these on, but there were a few to be sure. One of them was the Raleigh Gran Prix. But that one, at least the ones imported into the US, did not have your integral derailleur hanger. They DID have a bridge over the seat stays for a center pull brake. So I don't THINK you have a Gran Prix. So in all likelihood some other Carlton made frame. From the 1965-75 era, more or less.
__________________
www.rhmsaddles.com.