Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Germany - Zeppelin Flights - 1933 (October 14-17), Chicago Flight cover to Brazil, franked by two values, including ''Chicagofahrt...'' overprint on 1m carmine, tied with Friedrichshafen ds, red confirmation cachet, Rio de Janeiro ''18.OUT.33'' arrival marking, VF, Sieger #238Aab, €900, Scott #C43