1931 Iceland Flight cover to Berlin, franked with set of three overprints, 1kr variety ("1" with a white bulge to the right of numeral, so-called "hook variety"), v.f., with arrival pmk Estimate: $250
1931 Iceland flight cover addressed to the United States, franked with 30a and 2k, with Friedrichshafen (3.7) and various other transit postmarks on reverse, fine Estimate: $150
