Constans II, AE Decanummium, Year 10 (650/651), Constantinople, Officina 1
(No legend)
Bust facing with long beard, wearing crown and holding globus cruciger, cross in left field
Large I, X representing regnal year to left, A representing officina mark to right, CON in exergue
19mm, 2.68g
SB 1021

Courtesy of beastcoins.com, Nov. 2010