This insulator is a CD 106 embossed on the front; "HEMINGRAY No 9" and "PATENT MAY 2 1893" on the back. It is a light purple color. The insulator is in excellent very near mint condition with only 3 drips with factory open bubbles on the tips. A very nice looking piece. Priced at $175.00 plus shipping. Payment by PayPal friends & family or check. Thanks.