Auction #1834 WORLDWIDE + ARGENTINA: General Winter auction

Front of a commercial cover that containg samples, sent from Gronau to Argentina by ZEPPELIN on 21/OC/1932, it bears 2 meter postages totalling 16.25MK., a special handstamp of the flight, and transit mark of Friedrichshafen for 24/OC, with defects but very attractive and interesting!