On a stabilized mount and with an air-cooled barrel, the twin 37/54 were the best performing Italian AA heavy machin-guns of the 2nd WW.

They had been specifically studied for both VITTORIO VENETO and DUILIO (rebuilt) class battleships, but were also fitted on several cruisers

One original  plate from the La Spezia dockyard at 1:5 scale with both right and left side view, breech and muzzle view.   Enclosed to the plans a CD with some photos of the 1:100 scale Mr.Barbieri’s detail model for his 1:100 scale model of the ROMA battleship