Bidspirit auction | Oskar Kokoschka (1886–1980), Por

Oskar Kokoschka (1886–1980), Por - Oskar Kokoschka (1886–1980), Portrait of Käthe Richter, chalk lithograph, inscribed on the stone lower right, monogrammed and dated '6.9.17', sheet naturally browned, 26 x 20.5 cm, framed under glass with a mat, 52 x 40 cm