The Vintage Wrist Watch Company has dated this piece to the 1900s.
The T-bar is hallmarked for 1913, with a maker’s mark for the Birmingham silversmith Henry Pope. Each of the links has the lion silver mark, and one has the same Henry Pope mark. The clasps are period replacements.

Each of the chains measure 21cm long including the T-bar and the clasp.
Also included is a silver fob, hallmarked for 1930, with a maker’s mark for Denton & Down. The fob has a 1930 inscription from when it was presented.
This is a heavy chain and fob, total weight 76g.
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