BLACK GLAZE MUSHROOM STYLE INSULATOR . RARE and Seldom seen, Hard to find, END CAP or DEAD END Insulator, Unknown Maker . Black Glaze with Gray and Brown mixed in . Giant at 7 inches tall and 7 inches wide, this baby is heavy at between 6 and 7 lbs., and in Fantastic shape No Chips or Cracks . Looks like a Spaceship, believed to be used at the end of a group of suspension insulators, unique . Inside of threads are segmented . Get that Fathers day gift for yourself . PayPal or Money Order . NOW $150 plus shipping .