Well it's been a while, I aquired this frame with no forks four years ago, I was trying to find period parts but got fed up waiting and just built it anyway or it would have just sat there pining for the road.
The frame is 531 steel number
If anyone could put a more accurate date on it I would appreciate it.
Fred Elliot at Welling cycles who used to work for Holdsworth is pretty sure it was built before the Holdsworth takeover
Claud Butler 531 lugless steel frame [mid fifties]
Miche cranks, [to be changed]
Normandy Hubs on Mavic Record du Monde de l'Heure sprint rims with tubs,
Brooks Swift saddle,
Nitto B123 steel bars and Nitto Pearl stem,
Campagnolo brake levers,
and a Hi-Gear brake because it was the only one in the shed with enough drop
[to be changed]