In 2012 the  Blechen, “Hoehenzug mit blauen Schatten” (Mountain Range With Blue Shadows), was restituted to the heirs of Martha Liebermann, who took poison at the age of 85 to escape deportation to a Nazi concentration camp.
In 2012, Blechen's “Hoehenzug mit blauen Schatten” (Mountain Range With Blue Shadows) was returned to the heirs of Martha Liebermann, who took her own life at 85 to avoid being deported to a Nazi concentration camp.