WelshAntiques has dated this Art Nouveau Glass Inkwell to the 1900s.
The cast brass collar and lid are well-patinated, the latter having an engraved stylized lotus design. The original clear glass ink container is in position.

The inside of the lid bears makers or registration marks: "O.E.P. 10385/ R.G.M. ????" (see photos).
Excellent original condition (slight chips to the top of the ink reservoir). Circa 1900
This wonderful piece has been in my own collection for thirty-plus years.
Diameter: 5.25 ins.; 13.5 cms.
Height: 2 ins.; 5 cms.
WelshAntiques has dated this Art Nouveau Glass Inkwell to the 1900s.
Leading specialist in welsh furniture and folk art for 56 years
You can view the stock and full dealer information on the WelshAntiques Profile Page