Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Bolivia - ZEPPELIN FLIGHT : 1932 (April 23-27), 3rd Return SAF cover and two postcards from Cochabamba to Germany, franked by 4 or 5 or 3 stamps respectively, one with German oval confirmation marking in red (not mentioned in Sieger for that flight), each one has Friedrichshafen ''27.4.32'' arrival marking, VF, Sieger #151 var, Est. $150-$200, Sc. # 189/206