From a small collection of pressed glass mugs I purchased recently, this mug has a raised pattern of a bird on a branch on each side, along with wheat. Handle is angular, with geometric patterns. Color is slightly translucent white, with striations around body.
Shown in "Yesterday's Milk Glass Today" by Ferson, this pattern is called "Bird and Wheat", and was made by the Atterbury Glass Company of Pittsburgh, and shown in their catalog from the early 1880s.
These seem to have been carelessly made, with overflows/roughness at the mold joins.
Size: Approximately 3.25" high.
Condition: Some roughness around opening, chip on top of foot. No other chips, cracks or repairs.
Note that I try to be conservative about condition descriptions, carefully noting any flaws. Of course, with antique items, there will be some signs of usage, and/or manufacturing defects. But overall, my customers have always been pleasantly surprised upon receiving their items, and of course, returns are no problem if I happen to miss anything.