Quiet Street Antiques of Bath has dated this piece to the Edwardian era.
It is signed with his initials (O.R. lower right) and the box is inscribed within the lid. The medal: 55mm diameter.

Omar Ramsden (1873-1939) was one of England's leading designers of silverware and his work is keenly sought-after. He was made a member of the Miniature Society in 1921, and he exhibited over 90 works there.
Quiet Street Antiques of Bath has dated this piece to the Edwardian era.
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