Another notable design was the Vickers Medium Mk II, a pivotal design which combined some of the best traits of World War I tanks into a much faster tank. It had a fully rotating turret on top like the FT, but mounted a dual-use 3-pounder gun (that could fire both high-explosive and anti-tank shells) with a coaxial machine gun. It also had a radio, a machine-gunner position in the front of the hull, and some limited use of sloped armour. Some of these tanks would go on to serve in World War II, though most of the significance of the design lies in the number of features that were utilized in later tank designs.