A Sumerian calcified shell amulet of a recumbent animal, the eyes composed of incised concentric circles, pierced vertically through the back -- 3in. (7.7cm.) long; another, with two circles on the body -- 1 7/8in. (4.7cm.) long; a Sumerian limestone amulet of tricorn shape, each corner with a stylized human face with concentric circle eyes, the central section pierced vertically -- 1 1/8in. (2.7cm.) across; and an oval shell pendant with bronze suspension hoop -- 2½in. (6.5cm.) across, all 4th millennium B.C. (4)