Drawing showing cutaway view of a Sterkenburg C3 car, designed by John Tjaarda. Printed on front: "A general view of the novel American design showing its main features. Note the forward position occupied by the driver and the large body space." Labels indicate clutch and brake pedals; radiator; Adams suspension units; gear box; shaft drive; radius rods; 8 cylinder V type engine; sunk floor; pressed steel frame. Handwritten on back: "Sterkenburg, 1930. Cut away drawing of the car in 1930. Note all the modern innovations such as overhead valve V8, 4 wheels independently sprung, unitized construction, hydraulic steering gear, low-one piece floor, rubber suspension, etc."
