These models appeared from 1921 right up until the 1950's and was designed for and used by people who cannot use pedals. It has a chassis made of steel tubes with two big wheels at the rear and a deep basketry seat. At the front, the open tubular frame ends with a wooden footrest floor where two tubes hold the steering column. There is a hand pedal with a chain for transmission to the front wheel. There is also a small directional front wheel with drum brakes on the front wheel. They cost originally 950,000 Francs, depending on model.