Sirens, the mythological half-women, half-birds, were considered to be holders of wisdom and truth. Shown clasping the face of the mirror, they attested to the veracity of its reflection.
Muscarella, Oscar White, ed., Ancient Art: The Norbert Schimmel Collection, Philipp von Zabern, Mainz, Germany, 1974
Ancient Art: The Norbert Schimmel Collection, Israel Museum, Jerusalem, Spertus and Library Entrance Hall, 08/05/1977 - 12/12/1977
Gods and Mortals: Selected Objects from the Norbert Schimmel Collection, Israel Museum, Jerusalem, 17/05/1992 - 31/10/1992