Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Belgium - Zeppelin Flights - 1933 (October 14-17), Chicago Flight postcard to Brazil, franked by 4 air post values, tied with Brussels ds, Friedrichshafen ''14.10.33'' connection and red confirmation cachet, Pernambuco ''17.X.33'' arrival marking, VF, Sieger #238Aa, C.v.€450, Scott #C2-4