Watch List notes:

Constantine IV Pogonatus, 668-685. Decanummium (Bronze, 25 mm, 5.27 g, 7 h), Constantinople, 668-673. Helmeted and cuirassed bust of Constantine facing, holding globus cruciger in his right hand. Rev. Large I between cross and K; in exergue, CON. DOC 38. SB 1183. Very rare and exceptional for the issue; dark brown patina. Overstruck as usual, otherwise, good very fine.