Lot 1227
 
Switzerland 1913 Bern-Burgdorf First Flight, Mar. 30 (Zumstein III), picture post card (with official black & white illustration of Oskar Bilder, the pilot, in front of his early airplane) franked with 5c Tell and 50c Bern-Burgdorf semi-official air, each tied by violet Erste Flugpost/Bern-Burgdorf/30.111.(19)13 cancel;. Very Fine.
Estimate 200 - 300
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