This round glass butter or cheese dish was made by Fostoria Glass for Avon in 1973. The raised diamond and star pattern doesn't have a name, though there are several Avon/Fostoria items with similar designs. The scalloped plate measures 6-1/4 inches diameter and the dome cover is 3-3/4" diameter by 5 inches high to the faceted knob finial. In excellent condition with no damage, scratches, or wear.
Avon by Fostoria Round Glass Butter Dish