Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Turkey - Zeppelin Flight - 1933 (May 6-9), 1st SAF cover to Brazil, franked by three stamps, including Mustafa Kemal 50k carmine and black, tied by Istanbul ''30.4.33'' ds, blue confirmation cachet on front, Berlin ''3.5.33'' connection and Sao Paolo arrival on reverse, VF and scarce, Sieger #202, Scott #641