BYZANTINE EMPIRE. Isaac II Angelus. 1185-1195 AD. Æ Tetrateron (5.14 gm; 22 mm). Thessalonica mint. O / AP – X / M Bust of Archangel Michael nimbate, wearing divitision and loros, holding sceptre and globus cruciger. Rev. Facing bust of Isaac wearing divitision and loros, holding sceptre and anexikakia. DO 5a; Sear 2005. Nice original dark green patina. Choice Good VF / VF.