Copper-alloy, 6.46 grams, 27.75 mm. Circa 2nd century AD. The flat disc with a raised central boss. The disc very fine millefiori enamelled in two bands. The top face of the boss showing traces of enamel. The reverse with a hinged pin and catchplate. Reference: Richard Hattatt Brooches of Antiquity, number 1052. A fine brooch. Provenance: from an old London collection.