Hi all, after searching the interweb I'm not much better of. I can supply the following details about my frame. Its a 56cm pista, serial number 8433, NO grease port, the only hole in a lug is one on the BB shell, longish pointed lugs, appears to be original paint, but then again with this age hard to tell, its a met dark red, 120mm rear spacing ( appears to be the way it left the factory ), forks are chromed ( still at work so unable to comment further on them ). The seatpost hole in the frame appears to measure 25.8mm, there are NO decals or headbadge to help, but the measurement seems a strange one to me, but to someone else may mean something. I would have thought 26.0 or 26.2mm maybe, looking forward to some thoughts, can supply pix if you require, I will be restoring to a better condition than it is at the moment, as it will be a rider for me in the near future.............regards wayne davidson Invers NZ...........