Image #1
WORLDWIDE AIR POST STAMPS AND POSTAL HISTORY
First and Pioneer Flights
Lot #
85 | 
| Scott # C6-7, C9
| 1926 (July 2-3), Pioneer Flight registered cover from Moscow to Kharkov (4th line opening), franked by three surcharged air post values, all appropriate markings and Kharkov "3.7.26" arrival ds on reverse, mostly VF, Est. $200-$250 . |