Puckerings has dated this piece to the 1920s.
This English napkin ring is made from a thick gauge of silver and has a good heavy weight.

Even better, it was made by one of London's top silversmith's, Mappin and Webb. There is a full hallmark for London 1925.
Excellent condition, measuring 1 7/8" in diameter x 1 5/8" tall at front panel.
Item ID:39241
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Puckerings has dated this piece to the 1920s.
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