Gv. 17 (Type 17)

A Japanese light tank prototype developed during World War II, designed to be a more agile and versatile light tank. It featured a 37mm gun and lighter armor, but was never mass-produced due to wartime production constraints.

Gv. 23 (Type 23)

A Japanese light tank prototype developed during World War II, designed to be a more agile and versatile light tank. It featured a 37mm gun and lighter armor, but was never mass-produced due to wartime production constraints.

Bz. 37

A type of German 37mm anti-tank gun used during World War II. It was known for its effectiveness against early Allied tanks but became less effective against later, heavier tanks.