||Linen backed horizontal format Bosch Battery Ignition System original poster for electrical automobile componets. Distributor, battery, coil, spark plugs, etc. Print code: UDT-UTE120/2B. Rare poster. Currently this is the only known copy of this poster to survive. Printed on thicker paper with some minor signs of age or wear.
These systems continued to evolve at a slow pace for decades, until the 60s, a technological revolution that has affected almost all sectors dealing with electricity and electronics for low and medium powers took the ignition system assault: the transistor.