The Fancy Fox has dated this piece to the 18th Century.
Hallmarked for London 1750, maker Samuel Herbert.

They measure 13cm (5 1/8") wide by 13.7cm (5 3/8") long and 3.5cm (1 1/2") high. They weigh an impressive 301g / 9.7ozt.
In truly excellent condition with no damage, dents, dings, etc, or repairs. Minimal handling wear, the marks and crests are in super condition.
The Fancy Fox has dated this piece to the 18th Century.
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