Optique Helicoidal (Mouvement) , by martha boto , 1967 , installation , Kinetic Art style
a glass display case with a black and silver design
A tall rectangular glass display case is standing upright on a white background.  The front of the case is black and the sides are clear.  There is a black frame around the case.  Inside the case are various shapes and sizes of objects that appear to be mirrors.  Some of the shapes are circles, some are squares, and some are triangles.