3-1/2 inches across; 2-3/4 inches tall and 3 inches across the base.
It is the same size and pattern as a covered dish in the Unknown category. Hazel-Atlas and Hocking have been suggested as maker, but no documentation has been found.
Some Forum members recall seeing this piece in pink and cobalt. There is also a large Hazel-Atlas shaker that looks similar to this pattern.