This insulator is a CD 154 embossed Zicme on the front. It is a beautiful dark purple that passes light very well. The insulator is in vnm condition with a 1/8" peck mark on the back skirt, a 3/16" faint fish eye bruise on the back dome, a flat 1/4" inner skirt flake and the typical roughness on the outer skirt edge glass over pour. A super nice displaying piece that is hard to find. Priced at $275.00 plus shipping. Payment by PayPal Friends mode or check. Thanks.