Watch List notes:

Constans II. 641-668. AE follis (24.13 mm, 4.39 g, 7 h). Constantinople mint, struck 642/3. ЄN TVT-O NIKA, Constantine II, beardless, standing facing, wearing crown topped with cross and chlamys, holding long cross and globus cruciger / Large m between A / N / A and N / Є / O ς; in exergue A II (= regnal yr. 2 = 642/3). SB 1000. EF for type, dark green patina on devices contrasts nicely with reddish deposits in fields.