Woodbridge Antiques has dated this piece to the Edwardian era.
There are also maker's marks, for the renowned silversmiths: Crisford & Norris Ltd.

Condition: This stamp case is in great antique condition. The hinge works perfectly and snaps shut.
It could be lovely to use as a locket.
Measurements: 2.5 cm x 2.8 cm Weight: 5.6 grams
Weights & measurements are approximate
Woodbridge Antiques has dated this piece to the Edwardian era.
Specialists in quality antique silver, fine jewellery & accessories
You can view the stock and full dealer information on the Woodbridge Antiques Profile Page