An antique Chinese bronze ritual cup, Zhou Dynasty, circa 4th century BC, the bell shaped cup with a flaring rim and high set looping handles, decorated with an archaistic silk worm frieze surmounted by a border of dragons in triangles, the waisted foot with key fret and chevron borders, characters in relief to the interior, with certificate from the Chingwah Lee Studio of Orientalia, San Francisco, height 14 cm