Alfa Romeo, 1935, 110 in-line engine, Aviation.

Barsanti e Matteucci, 1854, “Gas explosion” Engine, 2 cylinders.

Bernardi Enrico, 1882, 1-cylinder Pia engine

Continental, 1940, Kaydet radial engine wood propeller, Aviation.

Continental, 1940, PT 17 Kaydet radial engine, Aviation.

Fiat, 1920/30, doubleblock 4 cylinders, Motor truck.

Fiat, 1920/30, tipo 64, 4-cilinder engine, truck.

Fiat, 1930/40, 4 cilindri, Car engine.

Isotta Fraschini, 1930-40, ASM 184 on MAS torpedo boat

Isotta Fraschini, 1940-60, MAS Silurante, Marino.

MV Augusta, 1940, prototype.

MV Augusta, 1950, GA 40, mechanical engine, Aviation.

Walter, 1940, type 68/75, marine engine.

Wright, 1940, Cyclone R3350 23, radial engine.