JOY BOSWORTH (BRITISH B. 1955): A large metal dish, the rim decorated with a riveted effect, copper detailing and engraved patterns, the interior with an iridescent finish, an incised spiral mark to the centre and initials 'BO' to the base, 43 cm diameter, together with a similar metal dish, engraved all over with a spiral pattern, 35.5 cm diameter (2)