Okay, so it's not the 3-cylinder engine, I see.
That means that this is the successor built under Breda's supervision, the Breda-Pensuti:
The engine makes me wonder.
According to what I could find, the updated Pensuti triplane should have changed from the 3-cylinder Anzani engine to a 10-cylinder one.
The images however show a 6-cylinder engine apparently.
Now that most sources refer to the 10-cylinder one as "Breda-Pensuti B.2", I would be tempted to call this a "Breda-Pensuti B.1" or whatever lol
Best regards - Mike