Manuel I Comnenus. 1143-1180. Æ Tetarteron (23mm, 5.02 g, 6h). Thessalonica mint. Struck 1152-circa 1160(?). Facing bust of St. George, holding spear and shield / Facing bust of Manuel, holding labarum and globus cruciger. DOC 18; SB 1975. VF, green and reddish-brown patina.