The bowl appears to have been made from the #631 cake plate, the size and base size are matches.
Measures 8 1/2" in diameter and 2 1/2" tall. The bowl is ribbed with the ribs raised on the underside of the bowl. The ribs end short of the bowl rim and are squared on the ends. The base is plain and shows some amber and is known as a snapped up base. Has a round footed base and ruffled rim. The glass has many imperfections.