there were so many Italian "bike boom" frames that shared similar features: bullet stay caps, the Bozzi "inspired" lugs (can't tell you exactly what make lugs you have there) that appeared under dozens of brand names, including, but not limited to:
Atala, Olmo, Chiorda, Torpado, Bianchi (yes, Bianchi), Fiorelli, and lots more I'm forgetting...typically made with plain steel tubing and often lower-end Italian and/or French components.
Sometimes there are holes from a (removed) head badge that can help ID, sometimes there's a brand on the seat post clamp or headset but your bike doesn't look to have those clues.
I'd guess that the stem and handlebars might not be OEM, but even that could be wrong.
sorry...