Watch List notes:

Heraclius (610-641). AE Half Follis, Rome mint. D/ Facing busts of Heraclius (on right) and Heraclius Constantine on left; between their heads, cross. R/ Large XX; above, cross; in exergue, ROM. Cf. D.O. 261 var. (Heraclius on left); Cf. Sear 889 var. (same). AE. g. 2.73 mm. 14.00 RR. Very rare variety. Earthen green patina. F/VF.