λ A diamond and ivory mourning ring, circa 1792

λ A diamond and ivory mourning ring, circa 1792, of oblong outline, centring on a glazed panel containing a funerary monument in ivory bordered with rose-cut diamonds, painted with an urn and the initials JY, to a ground of hairwork, the outer border of black and white enamel, mounted in gold, the reverse with dedicatory inscription 'James Young ob 25 Septr 1792 At 55', size P, front measuring 3.1 x 1.7cm