Lot
593 
1913 (Oct. 4) Experimental Aeroplane Mail Service, Natrona, Penn. Flown 1¢ red postal card with purple flight cachet and canceled by Natrona, Pa. cds, Very Fine. AAMC No. 74. Estimate $100 - 150.
Realized: $200
Sale 22: The Westpex Sale
Pioneer Airmail Flight Covers
Lot 593
1913 (Oct. 4) Experimental Aeroplane Mail Service, Natrona, Penn. Flown 1¢ red postal card with purple flight cachet and canceled by Natrona, Pa. cds, Very Fine. AAMC No. 74.Estimate $100 - 150.