Amulet of the God Nehebkau
Nehebkau, often depicted as a male with a snake head, was originally the explanation of the cause of binding of Ka and Ba after death. Thus his name, which means (one who) brings together Ka. Since these aspects of the soul were said to bind after death, Nehebkau was said to have guarded the entrance to Duat, the underworld.
Gold, 2 x 1 x .75 cm (¾ x 3/8 x 5/16 in.). Late Period to Ptolemaic Period, ca. 664-30 BC. Now in the Art Institute of Chicago.