Karl-Gerät
Karl-Gerät (040/041) (lit. 'Karl-device' in German), also known as Mörser Karl, was a World War II German self-propelled siege mortar (Mörser) designed and built by Rheinmetall. Its heaviest munition was a 60 cm (24 in) diameter, 2,170 kg (4,780 lb) shell; the range for its lightest shell of 1,250 kg (2,760 lb) was just over 10 km (6 mi).