Copper-alloy, 8.47 grams, 23.24 mm. 1st-4th century AD. A cast D-section terret from a Celtic or Romano-British chariot, formed as a loop with crescentic expanding collars flanking the rear bar. It was used in the management of reins and straps on a horse. Reference: Read, B. Metal Artefacts of Antiquity, Langport, 2001 item 486. Very fine condition. Provenance: found Bridlington, East Yorkshire, England.