Zundapp Challenger 1956

100 watt generator with polished alloy hubs and a dual sponge seat - my goodness, now that is impressive! Ad writing in 1956 was not yet an artform.
Image from a two-page "Zundapp in 1956" brochure produced by U.S.A. distributor International Motorcycle Company, scanned by Florian Simala and forwarded by Sheldon Aubut