Heinrich Hoerle, ”Frauenkopf (Trude Alex/Hoerle?)” Circa 1935 Monogrammed upper left: h 38,2 × 27,8 cm Wax crayon on Japan paper August Sander, Cologne (thence by descent to the present owner) Hoerle und sein Kreis. Frechen, Kunstverein, 1970/71, cat. no. 110, ill.