Lot 4127
 
Bulgaria 1933, 2nd South America Flight (Michel 305 a), registered postal stationery flown via Berlin connecting flight to Recife. Postage tied Sofia 31.5.33, Berlin connecting flight cachet and green Zeppelin flight cachet on front, Recife arrival postmark backstamp. Very Fine. Sieger 214 Aa €550 ($590).
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| Realized $525 |
