vintage Imperial Star Holly leaf pattern milk glass salad / vegetable bowl

Hard to find vintage Imperial Star Holly pattern milk glass - this is the large serving bowl, about 10 1/2" in diameter across the rim.

There's no chips, cracks or visible wear to this piece, though there's a yellowing at the bottom of the bowl. It doesn't seem to budge at all for cleaning, so it's either a stain or a manufacturing flaw to the glass.