Willem de Kooning (1904-1997) _Woman-Landscape IV _ signed 'de Kooning' (lower right) oil on vellum laid down on canvas 23 ¾ x 18 7/8 in. (60.3 x 47.9 cm.) Painted in 1968....

Willem de Kooning (1904-1997) _Untitled _ signed 'de Kooning' (lower right) charcoal and pastel on vellum 24 ¼ x 19 in. (61.6 x 48.3 cm.) Executed in 1965....

Willem de Kooning (1904-1997) _Untitled_ signed 'de Kooning' (lower right) oil on newsprint laid down on panel 20 ¼ x 28 ½ in. (51.4 x 72.4 cm.) Executed _circa _1977....

Willem de Kooning (1904-1997) _Untitled_ signed 'de Kooning' (lower right) graphite on paper 8 x 10 in. (20.3 x 25.4 cm.) Drawn in 1975....

WILLEM DE KOONING (1904-1997) _Untitled _ charcoal on paper laid down on board 11 x 8 ½ in. (27.9 x 21.6 cm.) Executed _circa _1970s....

Willem de Kooning (1904-1997) _Figure _ signed 'de Kooning' (lower right) charcoal on legal paper laid down on Masonite 12 ½ x 8 in. (31.8 x 20.3 cm.) Drawn _circa _1966....

WILLEM DE KOONING (1904-1997) _Woman_ signed 'de Kooning' (lower right) ink on paper 11 x 8 ½ in. (27.9 x 21.6 cm.) Executed _circa _1962....

Willem de Kooning (1904-1997) _Untitled_ signed and inscribed 'to Janet from Bill de Kooning' (lower right) oil on newspaper laid on board 29 x 17in. (73.5 x 43.5cm.) Executed _circa _1973...

Willem de Kooning (1904-1997) _Woman_ signed and inscribed 'SOUVENIR TO TROVA from de Kooning' (lower left) graphite on paper 13 x 10 in. (33 x 25.4 cm.) Drawn_ circa_ 1949....

Willem de Kooning (1904-1997) _Untitled_ signed 'de Kooning' (lower right); inscribed and dated 'Dec 8 '57 Happy Birthday, Patia with love, Bill' (lower left) oil, charcoal and gouache on paper 13...