The provenance of these coins is particularly interesting. For many years it was believed that the coins inscribed Lima were struck from silver captured by Anson on his voyage, when he was known to have seized a galleon including a large quantity of silver from Lima at Paita, which was bound for Manila. Subsequent evidence points to the silver being the proceeds from a raid by two privateers on French ships returning from Lima. Other authors have argued that the Lima silver was in fact derived from both sources. The possession of Lima coins as a memento by Captain Saumarez who was involved in the Paita raid, and then by his descendants, would appear to lend weight to the latter version of events. See "Captain Philip Saumarez and the voyage of the Centurion", by Ann Pemberton, SCMB 1977 pp.44-6, 93-7, 136-9.