Okay, I picked up the frame plus components. The what I'm presuming it is is an "h" with two lines crossing through it. There is the number "60" engraved on the BB area and on the steerer tube. No other manufacture markings on the frame. Braze ons for water bottles and the downtube shifters. 126mm dropout spacing

A few clues.

Full Shimano 600 Arabesque groupset.
Shimano Dura Ace Freewheel
Gipemme Dropouts


A few pics:

Overall frame.




The markings on the seatstay



Same markings on the fork



The "60" on the fork



BB area





Any help. I'm a bit lost on this one