Watch List notes:

Constantine IV Pogonatus, 668-685. Dekanummium (Bronze, 27 mm, 5.47 g, 6 h), Constantinopolis. Diademed, helmeted and cuirassed bust of Constantine IV facing slightly to right, bearded, holding a spear in his right hand and with a shield decorated with cavalryman over his left shoulder. Rev. Large I between cross and K; in exergue, CON . DOC -. MIB 91. SB 1183A. Beautiful earthen highlights. Overstruck on an earlier issue, otherwise, about very fine.