Here's an insulator that I don't see very often. This comes to Icon by way of the National. It is a center embossed CD 112 S. B. T. & . T. Co. The color might be ice blue or very light aqua, hard to say. There is a very small, shallow chip at the base of the skirt just to the right of center. There is also a nibble on the upper wire groove (super minor & on the back side). I'll be very suprised if this doesn't sell very quickly. $150 delivered.