The teachings of grandfather Tobias (study) Štěpán Zavřel Original bibliographical reference The magic herbs, (The secret of the magic herbs), Eiichi Sekine, Štěpán Zavřel, Gakken, 1984 Other editions Der Garten des Tobias, text by Dieter Naumann, illustrations by Štěpán Zavřel, Hans Peters Bilderbuch, 1988 Technique watercolor Measures 27 x 33,3 cm Year 1984