Copper-alloy, 15.86 grams, 44.87mm. 11th-12th century AD. A pair of cast swivel-mount rings, each loop formed as a pair of opposed zoomorphic heads clutching the swivel-half in its jaws. The swivel was probably developed to prevent tangling in the leashes of hunting dogs. Reference: Mills, N. Medieval Artefacts, Witham, 2003, p.19. Good very fine condition, complete and articulated. Provenance: found Norfolk, England.