The Norton Commando 850 was a very popular 1960s and 70s model. It was sold as both the “Interstate” with a larger touring tank, and as the “Roadster” with a smaller sport tank. The Norton Commando has an 828cc air-cooled twin engine with a 4-speed transmission. It was the last twin-piston engine motorcycle produced by the Norton-Villiers motorcycle company. The revolutionary part of the Commando, compared to earlier Norton models, was the frame developed by engineer Stefan Bauer. The engine, gearbox and swing-arm assembly were isolated from the frame by special rubber mountings. This eliminated vibration problems. Ziggy restored this motorcycle in the 90s. Posters below are from circa 1970.
Norton Commando advertising from Germany, England and the US.