Charles Green Shaw, American, 1892 to 1974, abstract oil painting on cardboard. Signed by the artist lower left. Framed. Charles Green Shaw was a painter, poet, writer, and illustrator. He was a key figure in early American abstract art. Shaws paintings are part of most major collections of American Art, including the Art Institute of Chicago, Corcoran Gallery, the Metropolitan Museum of Art, the Musee dArt Moderne de Paris, Museum of Fine Arts Boston, and more.