unused Germany: 1928-31 Zeppelin 1m. to 4m., 1930 South American Flight 2m., 4m., 1931 Polar Flight 1m. to 4m., 1933 Chicago Flight 1m. to 4m., 1933 Welfare Fund sheet, 1935 "OSTROPA" sheet, later values including West Germany 1951-52 "Posthorn" 50pf., 70pf., 80pf. and 90pf. (several hundred)