Justinian I. AE Follis 35.50 mm, 15.89 g, Constantinople mint (if official) or Ravenna (if Vandals), AD 527-565. 

DN IVSTINIANVS PP AVG, pearl diademed, draped and cuirassed bust right.
Large M; six-pointed star to left, cross above, upright 
crescent (closed to resemble a retrograde D) to right, 
officina letter Gamma below. 

Mintmark CON. 

cf SB 162; MIB 88; DOC type 32.

Note; This could possibly be an ancient Vandals imitation, 
as the crescent in the right field has been closed to 
resemble a retrograde D.

With permission of TimeLine Auctions 
(www.timelineauctions.com), Apr, 2016