KOLLER HIGHLIGHTS 2021

| 15 WILLEMDE KOONING (Rotterdam 1904–1997 New York) Untitled. 1973/75. Oil and gouache on paper on board. Signed. 45 × 60 cm. SOLD FOR CHF 530 000 Estimate: CHF 600 000 / 900 000 © The Willem de Kooning Foundation / 2022, ProLitteris, Zurich