HANS ERNI (Luzern 1909 – 2015).
Ex Libris Leopold Ruzicka. Radierung in Rot. 1947. In der Platte Mitte rechts unten bezeichnet: „e“. 9,8 : 9,1 cm auf starkem Velin 19,9 : 15,4 cm. Exemplar auf grossem Papier.
Reprod. in: Carl J. Burckhardt. Hans Erni. Zürich 1964, S. 4. – Lavoslav Ružička born as Lavoslav (Leopold) Ružička (13 September 1887 – 26 September 1976) was a Croatian scientist and winner of the 1939 Nobel Prize in Chemistry who worked most of his life in Switzerland. He received eight honoris causa doctorates in science, medicine, and law; seven prizes and medals; and twenty-four honorary memberships in chemical, biochemical, and other scientific societies. (Wikipedia).
