This piece is one of my oldest and most valuable archives. Donna Karan wanted to use it in a fashion show and I told her NO. I would make her an all silver replica which she used, and I then sold. But this is the original, and was shown in the now famous exhibition MCA in Boston, JEWELRY AS SCULPTURE AS JEWELRY 1975. Constructed of brass and sterling silver, the entire frontal piece actually moves around with the body, thus called The Rolling Machine.