The Fancy Fox has dated this piece to the Georgian era.
Monogrammed to the lid.

It measures 2" long by 1 1/4" wide and weighs 28 grams. Condition is very good; there are a few very light and shallow dints only. Light surface wear, the thread is good and smooth, the grater is a bit stiff to get out but does come with a little encouragement.
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