Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World. Part 1
Lot 118:
BALLOON POST – SELECTION OF 20 ITEMS,: 1935-56, 5 cards and covers representing pre-World War II flights, such as Darmstadt-Hamburg, Gordon Bennett Balloon Post and etc., and 15 post-War pieces, including Hamburg Flight of 1951, Augsburg, Stuttgart, Schlieren – Zurich and many others, nice quality unit, mostly VF, Est. $150-$200
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