Lot 4084
 
Liechtenstein 1931, Europa - New York, June 18 (Graue-Leder 69 LN), registered cover addressed to the Swiss Embassy at Washington. Five airmails tied by Vaduz 10.6.31 postmark, red Köln-Cherbourg supplementary flight cachet and blue catapult flight cachet on front, Washington arrival postmark backstamp. Very Fine. The cover was intended for the Basel-Cherbourg supplementary flight but was routed via the Köln-Cherbourg supplementary flight. Only very few items known from Liechtenstein which made the Köln-Cherbourg supplementary flight. Graue-Leder $1,000.
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| Realized $350 |
