Norton dollshead gearbox front chain adjuster. A new complete front chain adjuster with adjuster screw bracket and nuts to suit dolls head and upright gearbox. Suit Nortons approx 1931 to 1946 Models: Big 4, 16H, 18, 19, 20, ES2, 50, 55, CS1, 30, 40, CSJ,Original Norton part Numbers:9466 - gear box front chain adjuster plate9467 - gear box front chain adjuster plate pin x 2- gear box front chain adjuster plate pin spring washers9468 - gear box front chain adjuster plate stud x 2 (12342 - adjuster plate pins (bolts) x 2)9469 - gear box front chain adjuster plate nutA2/314 - gear box front chain adjuster plate assembly