Exhibit Antiques has dated this piece to the 1750s.
A rare 18th century wine glass dating to c1750.
There are a few factors which make this glass rare. The first is the bowl shape itself. A cup bowl on any 18th century form is not something you'll find very often. Secondly, a cup bowl on an air twist wine is almost unheard off with very few examples in existence.

Date & Origin
England, c1750. Period of George II.
Condition
Excellent, no chips cracks or restoration
Dimensions
Height: 13.7cm Rim diameter: 5.1cm Foot diameter: 6.8cm
Historical Context
Hand-blown around the time the first patent for a one-piece pencil with eraser was issued to American inventor J. Rechendorf of New York City.
Exhibit Antiques has dated this piece to the 1750s.
Specialists in 18th & 19th century antique glass
You can view the stock and full dealer information on the Exhibit Antiques Profile Page