Robert Bush Antiques has dated this piece to the 1860s.
It's hallmarked for London 1869 with the silversmiths mark for Richard Martin & Ebenezer Hall.

The whole item is in excellent condition (any marks you can see are just reflections), is gilded inside and weighs 125 grams/4 troy oz.
This mug will come in a gift box with a certificate of authenticity.
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Robert Bush Antiques has dated this piece to the 1860s.
Antique georgian, victorian & edwardian silverware & collectables, antique boxes and caddies and decorative items.
You can view the stock and full dealer information on the Robert Bush Antiques Profile Page
Robert Bush Antiques is a registered member of LAPADA