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Gustaf Nagel. de Gustaf Nagelbr original text SchwarzweiFotografie von Gustaf Nagel Andere Versionen keine Eckehard Schwarz GustafNagelFrderverein Arendsee author Public Domain nach Auskunft von Eckehard Schwarz GustafNagelFrderverein Arendsee original upload log de Mutter Erde CommonsHelper page de GustafNagel Neitram bytes