Thank you Devinfan for the reply. But as far as I know Rigi used to have a twin vertical tube. That don't match my case.
I'm in an dead end certainly its not a Rossin maybe an early Riggio, Romani or Raysport?
Same more specific details:
The tube set is either a Columbus SPX or SL. Early Campy Record brakes and shifters. Galli front and rear derailleur.
A mixed crank set with a 54 Campy Record crank and 42 Galli.
Galli seat post and Cinelli stem and handlebar with Campy headset.
The frame is about 1.500gr. with fork. The sharp geometry indicates a sport bike 55cc x 55cc. Also the lugs have very clean and sharp edges no smoothing whatever.
Italian frame builders didn't use to do that. It looks more like a custom order to same kind of a small manufacturer.
Up to now the frame is going to be stripped from every part including color removal by a very good friend and excellent frame painter
who is gonna repaint the frame and fork. As a graphic designer I can redesign the head budge but I don't have a clue about the brand.
Please any ideas about the origin are gonna be cheerfully accepted!