An acrylic on board painting depicting an abstract expressionist composition in red, blue, black and white colors. Signed upper left: Sam Gilliam. Sam Gilliam, 1933 to 2022, was one of the great innovators in postwar American painting. He emerged from the Washington, D.C. scene in the mid-1960s with works that elaborated upon and disrupted the ethos of Color School painting. A series of formal breakthroughs would soon result in his canonical Drape paintings, which expanded upon the tenets of Abstract Expressionism in entirely new ways. Inspired by the improvisatory ethos of jazz, his lyrical abstractions continue to take on an increasing variety of forms, moods, and materials. One of a kind artwork. American Postwar And Contemporary Paintings, Abstract Fine Art Collectibles.