Bright blue aqua CD 160.7 base embossed AM INSULATOR CO NY DOUBLE PETTICOAT PAT'D SEPT 13 1881, NOV 13 1883 FEB 12 1884. Neat white stone trapped in the lower crown area. Superb condition for a damage prone insulator. The only flaw is a skinny shallow no glass missing 1.0" wire ridge bruise that you can't see if you display it with the stone side out. $ 285.00 includes shipping.