This insulator is a CD 145 embossed on the front; "W. G. M. CO.". It is a gray color. The insulator is in very nice condition with only a 1/4" factory open base bubble in the back and some very shallow dome annealing cracks. This insulator is tough to find in gray. I am pricing at below book at $110.00 plus shipping. Payment by PayPal friends or check. Email any questions. Thanks.