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Keywords from Image Description:
Vischer Heliogravure von MezzotintoOriginaldruck Graz Leykam Original aus . Vischer Heliogravure von MezzotintoOriginaldruck aus dem Besitz von Dr von Karajan Graz Leykam Original aus Creator Georg Matthus Vischer Die Umschrift VERA EFFIGIES REVERENDISSIMI ET DOCTISSIMI DOMINI GEORGI MATIIAE VISCHER MATHEMATICI CELEBRIMI