Nautilus shell cup

ovoid foot with beaded edge and silver rim decorated with scrolls and flowers; long stem with silver and gilt figure of Neptune with long hair and beard, holding a trident, riding a hippocamp; Neptune wears elaborate scrolled crown; nautilus shell forms cup, decorated with gilt and silver mountings with swags, a grotesque face, two caryatids, and a satyr, with two crabs and two turtles holding decorative silver ball pendants; topped with Jonah (?) emerging from the whale's mouth; whale ridden by Cupid (?), holding gold reigns