Constans II AE Decanummium. Syracuse mint. AD 641-668. 2.22 g. Dated regnal year 4 (AD 660-661). 

No legend, bearded, crowned and draped bust facing (crown surmounted by a cross), holding cross on globe.
Large I, +AN downwards on the left, NO Delta downwards on the right.

Sear Byz 1115A; Spahr 122; MIB 215. 
Ex D. Alighieri Collection.

With permission of cngcoins.com, Triton XII, Lot 817, Jan 2009