Watch List notes:

Constans II. A.D. 641-668. AR hexagram (23.02 mm, 6.28 g, 7 h). Crowned and draped facing busts of Constans and Constantine; cross above / DEUS ADIUTA ROMANIS, Heraclius and Tiberius standing facing, on either side of cross potent on stepped base. SBCV 998; DOC 57; MIB 152. EF, toned, a remarkable partial double strike error with second impression struck substantially off center, resulting in a composite image with multiple figures and two crosses on reverse.