In the US in the 1920’s and 1930’s the Chicago Piano was a slang term for what?
Machine-gun Machine Gun Machine gun Machine Guns Devil's coffee mill Machineguns Machine gunner Kugelwerfer Auto Sear Devil's Coffee Mill Machine guns Machinegun Machine-guns
kugelwerfer machine guns machine gunner machineguns machinegun devil s coffee mill auto sear machine gun
machine gun
WikipediaEntity
Machine gun