Originally Posted by
juvela
chainstay stop screams UK
chainstays are rapier pattern (conical and undimpled) which always means anglophone origin
Agreed, it does appear to be British.
headset cobbled together from bits
And appears to be missing the toothed lockwasher to prevent the threaded race from moving:
check fork ends to see if they match dropouts
Yes, they don't match, so it's suspicious for an aftermarket replacement, in which case, check the top and down tubes just aft of the head lugs for any signs of frame damage (paint cracks, ripples in the tubes).
