In A Nutshell Antiques and Interiors has dated this piece to the Victorian era.
The base of each mount is clearly hallmarked for B.Muller & Son, Chester, 1899.

They are in good condition with clear hallmarks. There are no damages and they display beautifully. There are some faint surface marks on the glass and a few minor marks and signs of age and use on the silver but nothing detrimental. They have been gently cleaned and polished and are ready for use.
The best description comes from the photos so please look at them all carefully and if you have any questions please ask. UK delivery £5, rest of the world £20.
In A Nutshell Antiques and Interiors has dated this piece to the Victorian era.
Selling good quality victorian, georgian and earlier furniture, accessories & decorative items. Ashburton, devon. LAPADA member
You can view the stock and full dealer information on the In A Nutshell Antiques and Interiors Profile Page
In A Nutshell Antiques and Interiors is a registered member of LAPADA CINOA