These vanity sets were made by du pont starting in 1917. They were not made out of ivory but it was a bakelite/celluloid type of plastic with an ivory color. The powder box has the "ivory pyralin dubarry" stamp. The pieces are in great condition. The powder box is 5 across and 2.25 tall.
The shoe horn is 5.75 long. This item is made of pyralin and plastic.