Opel Zeppelin 1934

1934 "Zeppelin" bicycle made by Opel company in Rüsselsheim.

"Airships and the still young aviation in general, dominated the public's attention in those years. No wonder, then, that the world's largest bicycle manufacturer - the Opel works in Rüsselsheim - named their professional wheel racing machines after this airship and later even decorated hoods and mudguards of their vehicles with stylized zeppelins..." (from alt-opel.eu)