THE HELICES (DOUBLE HELIX) , by alexander calder , 1944 , sculpture , Expressionism style , from PUBLIC COMMISSIONS AND THE WAR: 1937–1945 period
A metal sculpture of a tree with a letter B on it.
A metal sculpture is standing on a white surface. The sculpture is made of a dark metal. There is a tree on the base of the sculpture. There are two curved lines on top of the tree.