I found this on the roadside rubbish collection yesterday. has a mix of Shimano Sante and 600.
Frame is very light for its size. columbus drop-outs (forks & frame)
Serial number on the B/B is M205
Paint is a very dark blue with a gold mist over the top, done properly not with a spray can.
I know it isn't anything super exotic, as the lugs are quite basic, but it is well constructed & has an internal brake cable.
Seatpost diameter is approx 27mm (seatpost is stuck, so I will need to remove it somehow)
Once I find my damned headset spanner I will drop the fork out to see if there is any markings on the fork steerer.