An inscribed archaic bronze ritual wine vessel, zun, Late Shang - Western Zhou dynasty 商末至西周 冉母尊 well cast with a slightly bulging midsection rising from a splayed foot to a wide trumpet neck, cast around the body in crisp relief with two animal masks against a background of thunder patterns (leiwen) between bow-string bands, each mask flanked by kui dragons shown in profile, the interior cast with two characters reading ran mu ('mother of the Ran clan') h. 21.8 cm