the vehicle is equipped with a plate which is in a conspicuous and readily accessible position, is affixed to a vehicle part which is not normally subject to replacement and shows clearly and indelibly the identification number shown on the certificate and the name of the manufacturer; and

that number is marked on the chassis, frame or other similar structure, on the offside of the vehicle, in a clearly visible and accessible position, and by a method such as hammering or stamping, in such a way that it cannot be obliterated or deteriorate.