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Flatau Berlin. PDold Polski Od lewej Dr Siegfried Kalischer Dr Edward Flatau siedzi Dr Louis JacobsohnLask Dr Bernhard Pollack siedzi Okoo roku Berlinie Archiwum rodziny Lask English From left to right standing Dr Kalischer sitting Dr Edward Flatau standing Dr JacobsohnLask sitting Dr Pollack Circa in Berlin From archive of Lask