Bidspirit auction | Worldwide Pioneer Flights - Germany

Worldwide Pioneer Flights - Germany - 1924 (July 5-6), First Flight Berlin - Istanbul - Ankara cover, franked by two air post values of 10pf carmine and 50pf orange and bearing semi-official stamp ''Berlin- Angora'' 2GM blue and brown black, all appropriate markings and arrival ds, VF, Mi #12, C.v. €1,200, Est. $400-$500, Sc. #C21, C23