Watch List notes:

Constans II, with Constantine IV, Heraclius, and Tiberius (641-668). AE Follis, Syracuse mint, 659-668 AD. Obv. Constans, bearded and holding long cross, and his son Constantine, beardless and holding globus cruciger, standing facing. Rev. Large M, flanked by Heraclius and Tiberius, both crowned and holding globus cruciger, standing facing; above, monogram; below, SCL. D.O. 181; MIB 210; Sear 1110. AE. 6.44 g. 29.50 mm. VF.