26 août 2015
A carnelian intaglio ring, by Nathaniel Marchant (1739-1816)
A carnelian intaglio ring, by Nathaniel Marchant (1739-1816). Estimate £8,000 - 10,000 (€11,000 - 14,000). Photo: Bonhams. The collet-set carnelian plaque carved to depict Pericles wearing a Corinthian helmet in profile to the left, mounted in a later...