1929, world round flight, German post, posting Friedrichshafen, circuit to Friedrichshafen, picture postcard \"LZ 127\" with 2 and 4 RM. Zeppelin as well 1 M. Airmail eagle from \"FRIEDRICHSHAFEN 15 August 29\" to Überlingen with arrival postmark Friedrichshafen from 4. September and all corresponding Cachets, excellent condition