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...
The way the lower pump peg is brazed to the down tube is one thing I've never seen before; the shape of the wrapover of the seat stays is another. Can you tell us the outside diameters of the tubes, and the seat post size? Have you looked for tubing markings, serial number &c on the steerer tube?