Rose window (printing tests) Štěpán Zavřel Original bibliographical reference Jakob der Gaukler, text by Max Bolliger, illustrations by Štěpán Zavřel, Bohem Press, Zurich, 1991 Other editions Jacopo il giullare, text by Max Bolliger, translation by Francesca Romanini, illustrations by Štěpán Zavřel, Bohem Press Italia, Trieste, 2018 Technique painted woodcut Measures 49 x 68 cm Year 1991