Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Brazil - Dornier ''Do-X'' Flights - 1931 (July 23), VARIG Flight cover from Pelotas to Porto Alegre connected to Dornier Flight from Porto Alegre to New York City, franked by 12 stamps, including seven air post and five VARIG semi-official values, greenish blue Dornier Flight cachet and arrival ds on reverse, VF and scarce, Est. $250-$300, Scott #3CL16/ 21, C8, C19 x3