Via the excellent Dieselpunk, an great 1919 poster from Germany, advertising civilian air travel with Junkers aircraft.
![](http://farm8.staticflickr.com/7194/6992224131_e587a55d10_z.jpg)
This would have been part of the effort by the German aviation industry to “civilianize” as rapidly as they could, to try to salvage something from the post-Great War wreckage, and the restrictions the Allies were imposing on military aviation in Germany. It’s also a fantastic poster, in a style I really, really like and occasionally attempt to emulate.