THIS work by the American Abstract Expressionist painter Helen Frankenthaler features at Sotheby’s online sale of Women Artists which runs until May 27. The artist was a major contributed to American painting in the post war years. It is estimated at £90,000-£120,000. The sale, dedicated to female artists across the centuries, spans 400 years. Among the artists represented, many of whom have been marginalised over time, are Lavinia Fontana, Rachel Ruysch, Dame Laura Knight, Berthe Morisot, Dorothea Tanning, Dame Elisabeth Frink, Cindy Sherman, Dame Magdalene Odundo and Helen Frankenthaler.