This insulator is a CD 132 embossed in one line on the front crown; "PAT. DEC. 19. 1871" and "2" on the back crown and "B" on the back skirt. This is the [010] listing in the book. The insulator is in nice condition but has a factory open 1/4" bubble above the wire groove on the back, a front flat 2 3/8" base chip, and a 1" crack up from the base in the back. The insulator displays well from the front. $110.00 plus shipping. Payment by PayPal friends or check. Email any questions. Thanks.