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Gumbinnen Rueckzug. Schlacht bei Gumbinnen und Rckzug Aus eigenem Bestand br original text Hardy de br original text Eckhardt Dirks original upload log de PaulVIF page de GumbinnenRueckzug Hardy bytes no Schlacht bei Gumbinnen und Rckzug Aus eigenem Bestand Eckhardt Dirks Battle of Gumbinnen Eastern Front maps of