Exhibit Antiques has dated this piece to the 1750s.
A rare example of a Jacobite Acrotic engraved wine glass from c1750. It has a large pan top bowl above a multi spiral air twist stem with a central swelling knop. Conical foot with a snapped pontil.

Remembering that it was the death penalty for being a Jacobite sympathiser, especially in the years after the battle of Culloden in 1745, the engravings were a risk, but also a way of secretly pledging yourself to the Jacobite cause...CHR Forget Me Not, relating to The Young Pretender, Charles.

Comments
A wonderful large goblet in superb condition which has been in the same private collection for almost 15 years.
Date & Origin
England, 1750
Condition
Excellent, no chips cracks or restoration, clean and clear
Dimensions
Height: 21.2cm Bowl : 8.6cm Foot diameter: 9.5cm.
Historical Relevance
Made shortly after the battle of Culloden, the final confrontation of the Jacobite rising of 1745.
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