The Silver Squirrel has dated this piece to the 1880s.
I would date it to c1880. It has been beautifully designed and is in superb condition being free from dings splits distortions and repairs, it may have had a stopper? It measures approx. 4.75 inches (12cm) tall to the top of the handle by 3.5 inches (8.8cm) across handle to lip by 2.25 inches (5.6cm) across the base and weighs 104 grams. A very good quality well made rare piece.
The Silver Squirrel has dated this piece to the 1880s.
You can view the stock and full dealer information on the The Silver Squirrel Profile Page