Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Danzig - Zeppelin Flights - 1930 (May 18-19), SAF postcard franked by two values, tied by oval Luftpost ''15.5.30'' ds, red confirmation cachet, Seville ''19.MAY.30'' drop, minor scuffs on reverse, still F/VF, Sieger #57 I, C.v. €250, Scott #C29