The thimble is clearly hallmarked for Chester 1911, and the maker Henry Griffith and Sons Ltd.
Henry Griffith and Sons Ltd operated from Warstone Lane Birmingham.
The thimble stands 2.3 cm (.9") tall and has an opening diameter of 1.6 cm (.6"). It weighs 4 grams. All measurements are approximate. The thimble is in fair condition. There are no holes, but the opening is misshapen.