Kingsdown Antiques has dated this piece to the Edwardian era.
The glass inpot has a star cut base. Marked SJ for the maker 'Samuel Jacob' and hallmarked London 1902 (clearly marked on the side of the inkpot, unfortunately got missed when we photographed.

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Measurements:
Height: 2" (approx 5cm)
Diameter across base: 4" (approx 10cm)
Weight: 819g
In good condition - any dark areas are shadows from the photography, there is no damage to the silver and no chips or cracks to glass.
Kingsdown Antiques has dated this piece to the Edwardian era.
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