According to the catalogs, it is based on a 1922 patent. It was redesigned in 1930.

In the 1932 catalog there are 3 models, the 1012 - 265 lira, 1013 - 330 lira and the 1013 bis - 600 lira with "acciaio Krupp o Poldihutte" barrels. They also had a model with a sidelever, Cockerill steel for 350 lira.

At one point, I believe in the late 50's or 60's they gave it the name Vittoria. A name they seemed to pass around to various guns over the years.

Pete