Reutter Seat Knob With Domed Brass Plate Aston Martin DB2, DB2/4, Mark III, DB4, AC, Bristol, Rolls Royce, Bentley, Jaguar. The brass emblem has the correct typeface and is domed. Brass Emblem can be supplied separately to the knob. Price is for one complete knob and emblem. Knob made of acrylic resin 3D printed and with threaded brass insert. Correct shape with concave waist at the bottom just like the original. Faithfully modelled on an original knob. Dispatched with Royal Mail 2nd Class.