Quad 20mm gun mounted on a Panzer IV chassis. At base borden military museum near Angus, Ontario
German WWII flakpanzer, anti-aircraft afv developed on a Panzer IV body w, four 20mm guns, developed in 1944.
Surprising small profile when you stand next to it. I am six foot two inches and standing next to it, my head was well above the top of the body.
In SAVING PRIVATE RYAN, near the end of the film, the Americans face a quad 20mm light afv, and against infantry this was a terrible and devastating weapon.