Opus Antiques has dated this piece to the Georgian era.
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A similar example illustrated in 'Antique Boxes, Tea Caddies and Society' has a diamond shaped label placed where the painted rose is on this box saying 'A gift from Tunbridge' and is dated from the late 18th century. Hence we can also assume this was made in the Tunbridge area around the early 1800's.

This example is particularly good as the flowers haven't worn away much where the lid was swung open. Perhaps the snuff wasn't offered to many people.....Still lined with the original pink paper lining.
A late 18th century early 1800s Georgian Tunbridge Ware miser's snuff box.
It measures 7cm w x 2.5cm h.
Opus Antiques has dated this piece to the Georgian era.
Antique treen, boxes & decorative georgian items
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