Late Period, Dynasty 26, ca. 664-525 BCE Basalt (Stone), 10.6 x 8 x 5.4 cm (4 9/16 x 3 1/8 x 2 1/8 in.) Gift of Martin A. Ryerson, Art Institute of Chicago #X120 Photo © Joan Ann Lansberry

(From info card) The pleated headdress and uraeus (cobra) identify this portrait as that of a king.