The World is Made of Glass Ltd. has dated this piece to the 18th Century.
The tazza is in excellent condition for its age.
It has a rough pontil mark at the apex of the foot.

The tazza measures 27.5 cm (11 inches) in diameter at the turned over rim. The tazza is plain and sits on a folded pedestal foot that measures 11.8 cm (4.7 inches) in diameter. The tazza is only 3.8 cm (1.7 inches) in height. There is some light scratching and marking to the upper surface and a few minute inclusions and small unburst bubbles all dating from manufacture. There are no chips, cracks, or any obvious evidence of restoration.
Lead glass weighing in at 725 g. (~ 1 lb. 10 oz.).
The World is Made of Glass Ltd. has dated this piece to the 18th Century.
Dealing in antique and collectable glass from the 17th to the 21st century.
You can view the stock and full dealer information on the The World is Made of Glass Ltd. Profile Page