I have an early '70s Coppi
Milano-Sanremo built by Fiorelli That looks very similar. Mine has "Coppi" drop outs but other than that, it looks the same. Cable-stops, bottom bracket guides (tube and stop), fork crown, and the frame size stamp on the left side of the seat lug all match your frame. Mine also has a serial stamped under the right side of the BB. Yours might not be a Coppi but I'd say a Florelli from the early '70s is likely.
http://s437.beta.photobucket.com/use.../library/Coppi
Good luck,
Andy
Edit - Looks like our seat-stay caps differ too. But I still think we're close.