The Fancy Fox has dated this piece to the Edwardian era.
Fitted with the likely original blue glass liner. Hallmarked to the base for Birmingham 1903, maker Liberty & Co. Cymric and partial marks inside the cover.

See: The sale of The Shennan Collection Of Silver Mustard Pots Part II at Kingham & Orme, 05 March 2020, Lot 4015 for another example.
It measures 5.1cm (2") high, 4.5cm (1 3/4") across the base. It weighs 73g (42g / 1.3ozt silver weight).
In very good condition with no damage, dents or repairs and only minor handling wear.
The Fancy Fox has dated this piece to the Edwardian era.
Offering fine porcelain and pottery, 18th century and later, silver, glass and other small attractive pieces
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