1931, Friedrichshafen-Öhringen-Frankfurt-Friedrichshafen, Postal service reception in Öhringen to Frankfurt, picture postcard with 1 RM. Zeppelin with special stamp "ÖHRINGEN Zeppelin day 13. SEPT. 1931" to Stuttgart with arrival postmark Frankfurt from the same day, stamp in perfect condition, card in of the left lower corner lead Ex trace, otherwise in good condition