Written by Toyin Owoseje, CNN One of Pablo Picasso's Blue Period paintings is at the center of a lawsuit between a Jewish family and New York's Guggenheim Museum. The heirs of Karl Adler and Rosi Jacobi want the repatriation of the artist's 1904 masterpiece "Woman Ironing (La repasseuse)," which they claim the couple sold under duress as they attempted to escape persecution by the Nazis in their native Germany in 1938. The lawsuit, filed in Manhattan Supreme Court on Friday, states that Adler acquired the work of art in 1916 from Munich gallery owner Heinrich Thannhauser but sold it well...