Woodbridge Antiques has dated this piece to the 1910s.
The lid opens perfectly with a push button release, and when opened three spring loaded compartments are revealed in an engine turned pattern, to hold the sovereigns (all of which work faultlessly). The underside of the lid has a pale gold gilt wash and here very clear hallmarks are visible for the Birmingham Assay Office with a date mark for 1912 and Lion Passant indicating the finest sterling silver, along with the maker's mark for the renowned silversmith: Joseph Gloster Ltd. (Partial hallmarks are also visible on each of the sovereign compartments - see images).

This case is a good heavy gauge of silver.
A very collectable Sovereign case, unusual and rare.
Condition: The case is in very good condition. There are some very slight surface indentations to the front and back commensurate with age and use and some very slight wear to the stripped pattern on the lid.
Measurements:
Width: 8.5 cm approx
Depth: 3.5 cm approx
Height: 1.1 cm approx
Weight: 50.9 grams approx
Weights and measurements are approximate.
Woodbridge Antiques has dated this piece to the 1910s.
Specialists in quality antique silver, fine jewellery & accessories
You can view the stock and full dealer information on the Woodbridge Antiques Profile Page