Thanks for the ID! So it is a Gran Sport. I am guessing a 73 as 73 is stamped in the front of the lug at the seatpost -toptube junction. Serial is 0043040 . Does the serial indicate a Carlton or Nottingham build? I pulled the seatpost and get 27.2 farther down so I am guessing DB 531 tubeset? Can anybody ID the fork crown as that should ID the fork blades via the catalogs. How do these ride compared to nineties steel With the long stays and wheelbase it out to be pretty comfy?