After some research this item looks to be an ancient Islamic glass alembic. It may have been used for medical blood letting or it could have been used in the distillation process. I found a similar example of one on the METs website from nishapur Iran. It’s green glass. It is about 2 5/8 inches in diameter. It’s about 3 inches tall.
Dimensions
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Dear Jesse, Thank you for contacting Mearto with your appraisal inquiry. My sincere apologies for the delay with the appraisal. The presented object appears to be an Islamic glass alembic with the measurements of 3 inches in height and 25/8 in diameter. Such alembics were common in the Arabic hemisphere between 800 AD and 1200 AD. This piece was made probably between 1000 AD to 1200 AD. Comparable objects were recently offered and sold on the international auction market. This piece is in medium to good condition and there is no serious damage visible in the images provided. A fair market estimation would be between 500 to 1.000 USD. This estimate is based on actual recent past recorded auction sales of comparable items. Retail "asking prices" can be higher and may vary. With kind regards, George
