Lot 4129
 
Bulgaria 1933, 4th South America Flight (Michel 322 b), registered cover flown via Berlin connecting flight to Recife, nine adhesives tied Sofia 31.7.33, red Berlin connecting flight cachet and blue Zeppelin flight cachet on front. Arrival postmark backstamp. Very Fine. Sieger 223 B.
Michel €420 ($450)
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| Realized $350 |
