Otto Miller-Godesberg, Sketch of the main curtain, Barmen, Stadttheater (1905). Distemper on paper, 54,8 x 79,7 cm. Cologne, Institut für Theaterwissenschaft der Universität. «A magniloquent and absurd curtain, painted and luxurious metaphor of theatrically and illusionistic fiction of the bourgeois home. At one time a break on the theatre, the tent of the Sheikh and a drapery that is an end in itself.» V. Morpurgo, op. cit., page 130.