Andrew Cox Antiques has dated this piece to the Edwardian era.
These novelty items were formed in the shape of an envelope and are widely collected. A lovely and collectable example. Dimensions below.

Postage and packing £8.00 UK
£16.00 Europe
£22.00 Outside Europe
Condition :- Excellent, with no dents or splits. The lid closes well.
Date :- Birmingham 1903.
Hallmarks :- Clear and readable.
Maker :- Adie & Lovekin Ltd.
Width :- 3 cms.
Height :- 2.2 cms.
Depth :- 0.5 cms.
Andrew Cox Antiques has dated this piece to the Edwardian era.
Specialists in quality antique silver, glassware, jewellery and object de vertu
You can view the stock and full dealer information on the Andrew Cox Antiques Profile Page