Thanks for the help so far, it's much appreciated.

I dont currently have a shimano headset wrench, so will have to wait till tuesday for the local shop to open to look for a date stamp. The headbadge ghost was just to give an idea of potential branding

For now, the only further information i can offer is -
Seatpost Diameter: 27.2mm
Rear dropouts have no branding and the spacing is:125mm

I've also updated the album with close ups of the drop outs, BB braze ons and stamp


I'll get back to you once i've had the opportunity to weigh the frame and check for a date stamp in the steering tube.

Considering the potential that this is a rebuild, is it fair to say that the frame isn't expected to be of any high quality?