Watch List notes:

Constans II (641-668). AE Follis, Syracuse mint. Obv. Facing bust, with long beard, wearing crown and chlamys and holding globus crugiger; to left, I/N/[Δ]; to right, I /A. Rev. Large M; above, cross; below, SCL. D.O. 179; MIB 208; Sear 1108. AE. 3.83 g. 25.50 mm. R. Rare and in excellent condition for issue. Lovely deep olive green patina. Good VF.

Traces of overstriking on earlier Syracuse follis.