Carse Antiques has dated this piece to the 1880s.
It is marked but it is hard to see, it looks like a Paris mark to me. There is also a slightly rubbed owner or makers name on one side.
There is a small silver solder repair inside. The funny mark to the base in the photos is not damage, just a reflection.
SIZE; 3 1/4" diameter. 1 1/4" high
Carse Antiques has dated this piece to the 1880s.
You can view the stock and full dealer information on the Carse Antiques Profile Page
Carse Antiques is a registered member of LAPADA