Medallion with Saint Matthew from an Icon Frame
c. 1100 (Middle Byzantine; one of nine surviving medallions from a group of twelve that originally surrounded an Archangel Gabriel icon, possibly sent as a Byzantine diplomatic gift to neighboring Christian Georgia)· Metropolitan Museum of Art
Photograph: The Metropolitan Museum of Art, New York. Open Access (Public Domain / CC0). The underlying c. 1100 Byzantine cloisonné medallion is in the public domain. Credit line: Fletcher Fund, 1917.