Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Zanzibar - Zeppelin Flight - 1934 (October 13-16), 10th SAF cover to Brazil, franked by two definitive stamps of 25c and 30c, cancelled by ''4.OC.1934'' date stamp, Friedrichshafen transit ''13.10.34'' and red letter ''c'' flight markings, Pernambuco ''16.X.34'' receiver, slight traces of previous mounts, still F/VF and very rare, Sieger #280, C.v. €1,450, Est. $800-$900, Scott #192-93