Medallion bas-relief ebonite * representing the profile portrait of the Emperor Napoleon III, Napoleon III nineteenth century.
This medallion is in good condition.
A note: slight wear and scratches, a few minor accidents on the edge, see photos.
Charles Goodyear obtained ebonite in 1839 by subjecting natural rubber to a prolonged (and extreme) vulcanization process. Its color close to that of ebony is at the origin of its name. Her brother Nelson Goodyear patented and marketed it in 1851.