Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Vatican City - Zeppelin Flight - 1932 (August 29 - September 2), 5th SAF cover to Brazil, franked by nine stamps, tied by Vatican City ''26.8.32'' ds, Friedrichshafen connection (29.8.) and confirmation marking in violet, Bahia ''2.IX.32'' receiver on reverse, mostly VF and scarce, Sieger #171, Est. $500-$600, Scott #9, 14