Bidspirit auction | Worldwide Pioneer Flights - France

Worldwide Pioneer Flights - France - 1910 (July 28-31), Nancy - Luneville Flight, two illustrated black-and-white postcards, each one is bearing semi- official 25c indigo on grayish paper, one with Red Cross over the value, franked by Sower 5c and 10c respectively, minor flaws, mostly VF, Sanabria #502, Est. $140-$180