Probably Doyle & Co., Pittsburgh, PA.
Title GRAPE & FESTOON WITH STIPPLED LEAF GOBLET.
Seller ID 94-0587
Crystal. Non-flint. Probably Doyle & Co., Pittsburgh, PA. 1880s. The Welkers (Pressed Glass in America, p. 378) question whether this variant of the pattern can be attributed to Doyle. Fine (No defects).