Danzig 1931 Graf Zeppelin Pommerania Flight Ludvika Postcard to Stettin

1931, Graf Zeppelin flown postcard, Pommerania Flight, Ludvika town postcard, postmarked Danzig/Luftpost (3.5.31), with green circular confirmation cachet, postmarked Friedrichshafen (3.5.31) and Stettin (3.5.31), an uncommon and attractive franking, very fine.