Roseberys will offer a rediscovered Irish silver marriage locket in its Fine & Decorative sale in London on Thursday 1 October 2026, estimated at £3,000-£5,000. The locket, dated to around 1660, is thought to have been given by Robert Coppinger to his wife Margarett Roche to mark their marriage, and it encloses a rare Italian gold coin, a Piacenza doppia of Ranuccio I Farnese dated 1619. Engraved with the couple's names, the piece remained lost for generations before being accidentally unearthed in about 1850 near the ruined Mashanaglass Castle outside Macroom, County Cork. A 19th-century account records how a farm labourer's spade struck the locket's Nativity scene cover, leaving damage still visible today. The labourer took it to the local rector, the Rev. S. G. Fairlough, who returned it to Thomas Stephen Coppinger of Sandyhill, bringing it back into the family for whom it had been made. Its provenance is supported by documentation including a copy of the Journal of the Cork Historical and Archaeological Society from 1895 describing the discovery, and a handwritten 1892 letter from the British Museum's Keeper of Coins identifying the gold coin. Anna Evans, Roseberys' associate director and head of Fine & Decorative, said very few objects survived with such a vivid sense of the people and place they belonged to. The lot was consigned through the ongoing Auction Road Show at Dulwich Picture Gallery, the saleroom's partnership with the South London institution.