This is an unusual vintage piece of Murano glass. It is a mortar and pestle by Barovier and Toso, using the Cordonato d'Oro technique developed by Ercole Barovier. The base is polished and there is a long bubble in the pestle as can be seen in the photos.
It is about 3 1/2 inches in diameter and about 2 inches tall. It is in excellent condition with no chips cracks or other damage