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JohannGottfriedGruber. Johann Gottfried Gruber Steindruck von August Kneisel nach einer Zeichnung von Albert Fulda Johann Gottfried Gruber Lithography by August Kneisel after drawing by Albert Fulda MartinLutherUniversitt HalleWittenberg Universittsarchiv UAH Rep August Kneisel This image is in the public domain due to its age PDold