Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 1
Lot 13:
Description
1931 (October 16), Air Post Exhibition in Antwerp, four Air Post covers sent from Exhibition to Paris, London, Amsterdam and Malmö, each one bearing specially overprinted for each city semi-official stamp of 50c blue along with appropriate franking, confirmation markings, labels and arrival ds, VF, Est. $250-$300, Sc. #C1-2
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