United States 1934 Boris SERGIEVSKY Giant Sikorsky S.42 Pilot Signed Record Flight Cover
Price: $145.00
Out of stock
Description
5c postal stationery cover, postmarked with Bridgeport duplex (Apr 27), with violet cachet of the Worlds Altitude Record / Seaplane / CAT With 2000 & 5000 / Kilo Load, signed "Boris Sergievsky" in black, with signature of N.A.A. Observer below, unaddressed, a pleasing cover signed by this WWI Flying Ace of Russia and subsequent Test Pilot.