Blueberry or wild grapes pattern planter bowl, marked Brush - USA. Not sure of the exact vintage of this piece - it's in excellent condition, and could be from any time in the last 80 or 90 years!
It measures about 9" overall diameter, 8 1/4" at the rim. It's about 4" tall, with a solid bottom (no holes, I think this never would have had a saucer).