Byzantine Coinage, Constans II and Constantine IV, Solidus, Constantinople, 661-3, crowned, draped and facing busts of Constans and Constantine, rev. Heraclius and Tiberius standing facing, flanked by cross potent atop three steps, officina a, 4.39g (DO 30a; Sear 964). Lustrous, of good metal, extremely fine £200-£300