Justinian I. AE follis, "Salona" mint. AD 527-565. 8.2 g. 

DN IVSTINIANVS PP, helmeted and cuirassed bust facing, holding cross on globe and shield, cross to right.
Large M, cross above. No mintmark, legend or officina letter.

Sear Byz 329; DOC 358; MIB 248.
Rated scarce.

With permission of Ira & Larry Goldberg Coins & Collectibles, auction 53, Lot 2016, May 2009.
Ex Triton IX, lot 1620 (2006).