A SUMERIAN LIMESTONE CEREMONIAL BOWL FRAGMENT, from a large bowl with flat base and everted sides, the exterior wall carved in relief with a horned bull walking to the right, head frontally facing, a second bull to the right (head missing), standing on a beaded ground line -- 4½ x 4in. (11.5 x 10cm.) max., Jemdet Nasr Period, circa 3200-2900 B.C.