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Photo arienne verticale de Drie Grachten en Belgique Fonds Berthel Fi. Premire guerre mondiale World War cm FRACFi Av MB Pilote Adj Gisseleire observateur Lt Const Coomans Alt DRIE GRACHTEN Vue arienne verticale de Drie Grachten province des Flandres Occidentales rgion Flamande Belgique mai Guerre PHOTOGRAPHIE Fi Don FaucherBerhel