Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World. Part 1

Worldwide Air Post Stamps and Postal History - Bolivia

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Start price: $150

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ZEPPELIN FLIGHT : 1932 (May 6-10), 4th Return SAF four covers from Cochabamba to Germany, each one franked by four values, two with German oval confirmation marking in red, one with Brazilian cachet in violet, first one with Friedrichshafen, Friedrichshafen and Berlin ”10.5.32” arrival ds, VF, one cover with B. Moorehouse certificate, Sieger #160 var, Est. $250-$300, Sc. # 189/204