An enamel and marcasite parure, late 18th century

An enamel and marcasite parure, late 18th century, comprising: a necklace, a pair of earrings and a brooch, each set with oval sections of opaque blue enamel imitating turquoise, within borders of rose-cut marcasites, necklace length 27.5mm, with loops intended for a ribbon, pendant length 6.4cm, earrings 3.5cm each, late hook fittings; brooch 3.5 x 3.4cm, later brooch fitting, case

Provenance: Lady Margaret Drummond-Hay (née Douglas-Hamilton), daughter of the 13th Duke of Hamilton, who by repute wore this parure on the occasion of her wedding to Major James Drummond-Hay at Salisbury Cathedral in 1st February 1930, which was recorded on video by British Pathé, At the time of cataloging this video was available to view on YouTube.