Müller, Johann Georg „Abstrakte Komposition“ 1977 Öl auf Leinwand Oil on canvas Signed lower left: Joh. Georg 77. Monogrammed and dated on the reverse: J.G.M. 77. Signed with crayon on the stretcher: Joh. Georg Müller 85 x 110,8 cm 33 1/2 x 43 5/8 in. Private collection, North Rhine-Westphalia