||Rare original electrical automotive poster for the electrical installion for motor cars or other vehicles. Patented in Sochaux, Doubs, France July 13, 1931. In an electrical installation for motor vehicles a shuttle-type dynamo 1 is employed and the battery 7 is charged therefrom through a unidirectional current carrying device which is preferably an electrolytic or copper-oxide rectifier 8 but may be an electromagnetic switch. To put some of the information in simple terms, it allows you to have electric lights in a car.
There has been some minor restoration to the top left white boarder area but otherwise this antique poster is in very good condition.