Justinian I. AE Follis 27mm, 15.70 g, Constantinople mint, AD 527-565. 

DN IVSTINIANVS PF AVG, Diademed, draped, and cuirassed bust 
right; cross above, cross in right field.
Large M; star to left, cross above, crescent turned 
outwards to right, Epsilon below.
Mintmark CON.

SB 162 var (cross in right field on obv); DOC 32 var. (ditto); MIBE 88 var (ditto) SB 162 var. (same).

Rare. 
Ex J.-P. Righetti Collection, 90.
Estimate: $300.

with permission of cngcoins.com, auction 88, Lot 1468, Sept. 2011