Watch List notes:

Constantine IV, Pogonatus (668-685). AE Follis, Ravenna mint. D/ Helmeted and cuirassed bust facing, holding spear and shield. R/ Large M between [A/N/N/O] and X/X/X; above, IA; beneath, Θ; in exergue, [RAV]. D.O. 92; Sear 1240; Ranieri 740-1 (R3). AE. g. 3.41 mm. 20.50 RR. Very rare. Slightly off center, however sharply struck and attractive. Lovely green patina. Good VF.