The Vintage Wrist Watch Company has dated this piece to the 1900s.
The chain measures 33cm long including the T-bar and the clasp.
The T-bar and clasp is hallmarked for 1909. All the links have the silver lion mark.

The chain comes with a silver vesta case, hallmarked for Birmingham 1904. Nicely decorated on the front and back. A little unevenness to the one side, and a few little “dings” to the top corners.
Total weight 62g.
The Vintage Wrist Watch Company has dated this piece to the 1900s.
Specialists in antique and vintage wrist watches and pocket watches
You can view the stock and full dealer information on the The Vintage Wrist Watch Company Profile Page