Puckerings has dated this piece to the Edwardian era.

The napkin rings are beautifully engraved and each having a shaped vacant cartouche to the front.
The pair is lucky enough to come in the original case, with wear but well over 100 years old.
Excellent condition each measuring 1 7/8" x 1 1/8"; the case measuring 3" x 2 1/4" x 2 1/4".
Item ID: 40702
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Puckerings has dated this piece to the Edwardian era.
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