Constantine I AE follis, Thessalonica.

IMP CONSTANTINVS PF AVG, helmeted, laureate, cuirassed 
bust right.
VOT XX MVLT XXX and mintmark dot TS dot epsilon dot in four 
lines within wreath.

RIC VII Thessalonica 28
Extremely rare (R5).

Contributed by Riccardo Marzi, Feb. 2013.