Franz Kline, Untitled II, c. 1952, Ink and oil on cut-and-pasted printed paper on paper on board, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/36189

Franz Kline, Painting, 1952, Oil on canvas, Art Institute of Chicago, Chicago. https://dartabase.art/cite/aic/102581

Franz Kline, Untitled (Study for Mahoning II), 1960, Ink on paper on board, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/34572