I have a frame of the same era but not the aero version you have. I think these were made by Mondonico, who ran the Guerciotti shop for a number of years. I bet it does not have the ten speed drive engraving anywhere, typical of imports with those decals and the seat stay cap engraving. I have never seen another builder use that particular chainstay bridge. It is going to be a gorgeous build. Now you need to start collecting the wonderful set of Guerciotti pantograph parts.
I copied this 1979 NY Show bike from Ray Dobbins site:
79 Guerciotti
Have fun with the build