Copper-alloy, 3.02 grams, 21.40 mm. 9th-10th century AD. An Anglo-Saxon copper-alloy nummular brooch with a carefully detailed central bust within a concentric billeted double border. The catchplate and pin-lugs are partially present on the reverse. Reference: Cook, B. and Williams, G. (eds.) Coinage and History in the North Sea World, c. AD 500-1200. Essays in Honour of Marion Archibald, Brill, 2006. This work includes a chapter by Dr. Kevin Leahy on Anglo-Saxon coin brooches, pp. 267-85. Leahy illustrates three nummular brooches, dated to the 9th and 10th centuries, which he suggests were copied from either the gold coinage of Louis the Pious (814-840) or late Roman coinage. Published: Hammond, Brett. British Artefacts, volume 2 - Middle Saxon & Viking, Witham, 2010. Good fine condition. Provenance: from an old English collection, found East Anglia, England.