This large cable porcelain insulator measures 5 3/4" wide by 4 3/4" tall. Stamp marking 55-4 with 82 in a circle. I assume the 55-4 is the ANSI code spec. Has black radio treated ears with Brown glaze stripe and a grey skirt. Small piece of caulking residue on skirt that will wash off otherwise VNM++. First email gets this for only $7 plus shipping. Thanks