Constans II. Decanummium; Constans II; 641-668 AD. Constantinople, Year 20=660/1 AD, Decanummium, 2.84g. Berk-672, MIB-186, DO-97, Sear-1021. Obv: No legend, Bust of emperor facing, with long beard, wearing crown and holding cross on globe. Rx: Large I flanked by X/X and A, cross above, mintmark [CON] in exergue is off flan.. VF