The Vintage Wrist Watch Company has dated this piece to the 1900s.
The chain measures 29.5cm long including the T-bar and the clasp.
There are hallmarks on the T-bar but they are difficult to read. The hallmarks on the clasp date it back to 1901. Each of the graduated links has the lion silver mark.

The chain comes with a silver fob, 32mm wide and 35.5mm high including the fixed loop. Maker’s mark for the London silversmith John Taylor & Co. Light surface marks but overall good condition.
Total weight 46g.
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