HeadingHartnack, Edmund used in: Integrated Authority File (GND), Germany
Variant NameHartnack, E...
Edmund Hartnack (1826-1891), German microscope maker, Photo from about 1885 [Unknown authorUnknown author / http://musoptin.com/Hartnack_19025.html -- Public domain -- http://commons.wikimedia.org/wiki/File:Edmund Hartnack.jpg]