4 Reichsmark Graf Zeppelin as correct-rate single franking on cover for the America flight, cancelled "BERLIN NO * 43k 20.9.28 3-4N" (first day), with arrival mark OCT.16.1928 NEW YORK, quite rare, photo certificate Dr. Helmut P. Oechsner BPP "in faultless condition." Mi. -.- - we have never previously been able to offer a first day cover of this issue!