Constans II, with Constantine IV, Heraclius, and Tiberius. 641-668. Æ Follis (20mm, 3.8 g). Constantinople mint. Struck 666-668. Helmeted bust of Constans facing, holding globus cruciger; K to right / Large M, surmounted by crowned facing busts of Constantine IV flanked by Heraclius and Tiberius, each holding globus cruciger.