Andrew Cox Antiques has dated this piece to the 1910s.
A rare and collectable item with a practical use. Dimensions below.

Postage and Packing £8.00 UK
£16.00 Worldwide
Condition :- Very good, with no splits or breaks to the silver. There are a couple of pin prick marks to the reverse of the silver case. The thermometer is in working order.
Hallmarks :- Clear and readable. Partial loss to the Maker's mark
Maker :- Probably Sampson Morden & Co..
Date :- London 1912.
Height :- 1 cm.
Depth:- 7.2 cms.
Width :- 2 cms.
Andrew Cox Antiques has dated this piece to the 1910s.
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