An Egyptian greywacke portrait head of Amenhotep III, New Kingdom, 18th Dynasty, reign of Amenhotep III, 1390-1352 B.C.&nbsp;6&frac14;  in (15.8  cm) high. Estimate $200,000-300,000. This lot is offered in Antiquities on 25 October 2017  at Christie&rsquo;s in New York