Werner Horvath: "Friedrich Nietzsche", color pencils on paper, 24 x 32 cm, 1994.

This drawing is also published in Ellen Geerings: "het oog in de storm - Wegwijs in de filosofie", Handbook 2, Boom (publisher), Amsterdam 2007 (ISBN 9789085060759), illustrating the Nietzsche-chapter.  
This picture  is also piblished in "The Hedgehog Review - Critical Reflections on Contemporary Culture" Volume 17, Number 3, Institute for Advanced Studies in Culture, University of Virginia, in an article by Matthew Scherer: "Nietzshe's Smile". ISSN 1527-867X, Charlottesville 2015.