Originally Posted by Drillium Dude

Looks like a small builder, perhaps British. Prugnat 62D lugset. Rounded ends at the fork/stay transitions. Short, stubby flat-topped seatstay caps. Long Campy 1010a dropouts suggest early to mid-70s production. Basic straight-cut BB shell with chain rollers used as cable guides - those right there say low-volume builder to me.

Can anybody ID the fork crown? Haven't see that one before.

What's the BB width and threading?

DD