138. An Empire clock set within a tortoiseshell-ground Medici vase, first half 19th century The dial signed L. Grognot à Paris, the vase decorated with Roman deities picked out in gilt on tortoise-shell ground, (chips to rim, no key, no balance wheel, movement needs servicing) 26cm in diameter, 37cm high (10in in diameter, 14 1/2in high).