Search Only Images Download this image Portrait of Carl August Steinheil No info available for book source. Image ID: SIL-SIL14-s006-05 Supplied Caption: Portrait of Carl August Steinheil. Engraving by J. C. Battre, published by Schaffner's Telegraph Manual. After Franz Hanfstaengl, 1804-1877. Tags: physics, Astronomy, Steinheil, Carl August (1801-1870) Categories: Science Collection(s): Scientific Identity No Copyright - United States Request copy of image How can I use this image?