Here's something you don't see every day. Large power cabletops in snow white. I think this is a U-684 but I could be wrong. Large triple skirted insulator in V NM condition. Has PP- KNOX, some numbers and 1982 all in blue ink under the glaze. This is a large insulator, weighs 4.5 pounds alone. First mail to me... $14 + $9.30 FR shipping in USA.Outside USA it's actual postage.