Tiberius II Constantine (?). 578-582. AR Siliqua (silver, 1.89 g, 19 mm), Constantinople. ∂ m COSTAN TINVS P P AC Helmeted, diademed, draped, and cuirassed bust right. Rev. GLORIA RO MANORVM Tiberius standing facing, holding spear in left hand and globus cruciger in right. DOC –; MIBE V19. Good. Extremely rare.