Denmark, 1932 (20-23 Mar), First South America Flight, Friedrichshafen-Pernambuco (Michel 234b), Registered cover franked with a 1kr Airmails (C2) plus an additional 55ø postage canceled Copenhagen, 19 Mar, with Zeppelin and Berlin Connecting Flight cachets; addressed to Concepcion, Chile and backstamped Santiago (28 Mar) and Concepcion (29 Mar), Very Fine. Sieger 138; €650 ($730). Michel €400 ($450) Suggested Bid $200-300 (Image)