Nice cornflower blue insulator embossed "Duquesne" rear "Glass Co." [035]. It has the four ribs and it displays mint from the front, the back has a bruise that's yellowed and no glass missing except on the bottom rim a small flake chip. A couple bird pecks here and there. PayPal excepted in family friends mode and also checks.*** I've been told the yellowing in back could possibly be resin, not sure!*** Now $60.00 U.S. + shipping.