DE: Frl. Frieda Brack mit ihrer jüngsten Schwester, jetzt Frau Siebenhüner, vor Fokker F.VII b-3m, CH-190 am Flugtag 31.8.1930 in Dübendorf
EN: Frl. Frieda Brack with her youngest sister, now Mrs. Siebenhüner, in front of Fokker F.VII b-3m, CH-190 at the flight day 31.8.1930 in Dübendorf

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