Jeff Sims Antiques has dated this piece to the 1850s.
A gorgeous item, both decorative and collectable. A second one with matching hallmarks is also listed.

P&P contribution £8.00 UK
£14.00 Worldwide (postage will be combined if both are purchased together).
Condition :- Excellent, with no dents or splits to the silver and no chips or cracks to the glass.There are a couple of age related minor blemishes to the lid.
Hallmarks :- Clear and readable.
Maker :- Henry Manton.
Date :- Birmingham 1853.
Height :- 3.25 cms.
Diameter :- 5 cms. (widest point).
Jeff Sims Antiques has dated this piece to the 1850s.
Specialists in antique silver, glassware and objects of vertu
You can view the stock and full dealer information on the Jeff Sims Antiques Profile Page