4 Reichsmark Graf Zeppelin as a single franking appropriate for the tariff on a letter to the America flight with cancellation "BERLIN NO * 43 k 20. 9. 28 3-4 N" (first day) with arrival stamp from OCT. 16. 1928 NEW YORK, quite rare, photo certificate Dr. Helmut P. Oechsner BPP "in flawless quality." Michel -.- - we have not been able to offer a first-day cover of this issue before!