Prometheus Antiques has dated this piece to the 1850s.
These items are said to have been made with shells collected by sailors and given as valentines to sweathearts. This example is most unusual because of the quality of the gilt frame it is mounted in. The whole is in untouched condition and has a great country house look, there has been some movement of the shells and the frame is quite knocked, but this all gives it a great shabby look. C.1840.
overall sizes in inches, including frame:
17 1/2 square and 3 1/2 deep.
Prometheus Antiques has dated this piece to the 1850s.
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