Lot 369
 
Switzerland, Airmail Forerunner, 1913, 50c Sitten-Sion on Glazed Paper on Cover, Zumstein #Xa, 50c laid paper with blue cds with additional 5c on Official Oskar Bider photo card with variety wing detached from plane's body, a Very Fine cover. Ex Katcher. Bohler (1975) cert.
Zumstein 3,200 SFr.
Estimate $700-900.
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| Realized $834 |
