I am currently reading a history of Friedrichshafen, Germany, by Verlag Robert Gessler. In it he describes a leaflet drop that took place on the evening of 24 September 1939 by a single "fighter" plane that circled the city. This aircraft also dropped a few bombs with minor damage. In searching for more detail, I have determined that this was likely the "Achtung! Deutsche! Bergefgt nicht!" leaflet 1939-151. However, all sites - including your own - indicate that this leaflet was only dropped on a few cities in northern and central Germany, never as far south as Friedrichshafen. I also assume, given that it was a single fighter, that the leaflets were dropped in bundles, rather than using a distribution device. Really interested to know, and the expertise of the people on this site would be greatly appreciated.