Andrew Cox Antiques has dated this piece to the 1900s.
The brooch is secured via a hinged pin and C clasp. A lovely, usable example with a nice movement when being worn. Dimensions below.

Postage and packing :- £8.00 UK
£14.00 Europe
£16.00 Outside Europe
Condition :- Excellent, with no damage. The clasp works well and pin hinge strong.
Hallmarks :- Unmarked - tests as silver.
Date :- Circa 1900.
Height (including drops) :- 3.7 cms.
Width :- 3.6 cms.
Depth :- 1.1 cm.
Andrew Cox Antiques has dated this piece to the 1900s.
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