Unidentified artist 1901, 18 October (earlier) Josef Székely (1838-1901), Austrian-Hungarian chemist and photographer
Book illustration Creative Commons - Wikipedia Ludwig Schrank, November 1901, "Gedenkblatt zum 40jährigen Jubiläum der Photographischen Gesellschaft in Wien", Photographische Correspondenz, vol. 38, nr. 494, pp. 655-674, Portrait p. 657
