Auction #94 WORLDWIDE AIR POST STAMPS AND POSTAL HISTORY

1930 (September 10-11), Moscow Return Flight stationery postcard and cover, franked by Zeppelin stamps of 40k ultra and 80k carmine respectively together with other values, tied by Moscow ''10-IX-30'' special date stamp, violet two-line confirmation cachet and Friedrichshafen ''11.9.30'' receiver, cover has slight fold away from the stamps, still VF, Est. $100-$150