1. North America flight 1936, handing in for transport Frankfurt (d), 3 covers always with 50 and 75 Pfg LZ129, as well 3 values with margin of sheet, from \"FRANKFURT (MAIN) 1.5.36\" to New York with corresponding Cachets and arrival postmarks, stamps well perforated but with normal toned gum, covers strength transport traces (tears, creases and so on)