An early 19th century royal Prussian enamel and diamond ring
Of oval form, set with the initials of King Frederick William IV of Prussia in diamonds against a black enamel ground, within an old brilliant-cut diamond surround, the verso engraved 'Frederic William, King of Prussia, to J.W (1819)', finger size Y, later ring mount; together with a Memoir of Joshua Watson, by Edward Churton, second edition, published by John and James Parker, Oxford 1863
An early 19th century royal Prussian enamel and diamond ring
Of oval form, set with the initials of King Frederick William IV of Prussia in diamonds against a black enamel ground, within an old brilliant-cut diamond surround, the verso engraved 'Frederic William, King of Prussia, to J.W (1819)', finger size Y, later ring mount; together with a Memoir of Joshua Watson, by Edward Churton, second edition, published by John and James Parker, Oxford 1863
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