Exhibit Antiques has dated this piece to the 1750s.
Conical foot with a snapped pontil. Unusual to find a petal moulded or engraved example.

Comments
A very popular glass from the 18th century, the most common examples having full diamond or honeycomb moulding. Very occasionally you come across an example that has a little more...something different...in this case an engraved rim and fine sharp petal moulding to the lower bowl section and stem.

The only other petal moulded and engraved example we could find was in the National Gallery of Victoria in Australia.
Date & Origin
England, c1760. Period of George II or III
Condition
Excellent, no chips cracks or restoration
Dimensions
Height: 8cm Rim diameter: 5.8cm Foot diameter: 5.4cm.
Historical Reference
On the 25th of October 1760, King George III ascended the throne, reigning for almost 60 years.
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