I have a few of them as there are many variations on this coin:
Byzantine Empire: Justin II (565-578) Æ Follis, Cyzicus, RY 10 (Sear-372; MIBE 50)
Obv: D N IVSTINVS P P AVG; Justin on left, Sophia on right, seated facing on double-throne, both nimbate, Justin holding globus cruciger, Sophia holding scepter, cross between their heads
Rev: Large M, ANNO to left, cross above, X to right, A below; KYZ in exergue
Byzantine Empire: Justin II (565-578) Æ Follis, Constantinople, RY 1 (Sear 360; DOC 23d; MIBE 43)
Obv: DNIVSTI-NVSPPAVC; Justin, holding globus cruciger, and Sophia, holding cruciform scepter, seated facing on double throne
Rev: Large M; cross above, to left, A/N/N/O and date across right field; Δ below; CON in exergue