1931, 3. South America flight, handing in for transport Friedrichshafen, letter with 4 RM. Polar travel from "SCHLAWE 14.10.31" and posting stamp Friedrichshafen 17.10.31 to Sao paulo / Brazil with arrival postmark, cover vertical archive fold and in the corners scuffed (the stamp tangent), Michel 1.100.- plusplus