The Fancy Fox has dated this piece to the Georgian era.
Hallmarked for London 1825, makers Richard William Atkins and William Nathaniel Somersall.

It measures 4" high, 2 7/8" rim to rim and 3 3/4" rim to handle. It weighs a substantial 187g/6ozt. Condition is excellent with no damage or dents and light and appropriate surface wear for age and use.
The Fancy Fox has dated this piece to the Georgian era.
Offering fine porcelain and pottery, 18th century and later, silver, glass and other small attractive pieces
You can view the stock and full dealer information on the The Fancy Fox Profile Page