The Silver Cabinet has dated this piece to the 1910s.
It is clearly hallmarked for Birmingham 1912 with the maker's mark of S Blanckensee & Sons Ltd. It also has a patent number stamped on the tail.
A wonderful item.

Dimensions:
Length: 9cm
Width: 9.5cm
Height: 3cm
Weight: 48g
Complimentary gift wrapping is available on request.
Post and packaging are free within the UK. Overseas buyers please e-mail for postage costs and please note: Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to buying.
The Silver Cabinet has dated this piece to the 1910s.
You can view the stock and full dealer information on the The Silver Cabinet Profile Page