Carl Elsener Sr. Carl Elsener Sr. Carl Elsener Sr. (also known as Charles Elsener, born 6 July 1922 in Ibach, † 1 June 2013 in Schwyz) was a Swiss entrepreneur. Carl Elsener was the grandson of Karl Elsener (1860-1918) and the son of Carl Elsener (1886-1950). Karl Elsener had opened a factory in Ibach for the production of knives and surgical instruments, from which the knife factory Victorinox developed. Carl Elsener led the company initially with his father and his brother Eduard Elsener (b. 1926). After the death of his father in 1950, he took over the management. The Swiss Army Knife is
Karl Schawerda Karl Schawerda Karl or Carl Schawerda (4 February 1869 in Újezd, Moravia – 11 September 1945 in Vienna) was an Austrian Czech entomologist who specialised in Lepidoptera. Karl Schawerda was a physician of Czech origin, a gynecologist and entomologist mainly devoted to researching moths, but also has significant as an author describing some of the new forms of "Parnassius apollo" Linnaeus, 1758. His father was a railway engineer. After primary and secondary education he studied medicine at the University of Vienna, After graduation in 1894 a gynecologist for four years at the Krankenhaus St. Anna Kinderhospital in Vienna. Later he