Constantine I Follis. 

Obv: CONSTAN-TINVS AVG, laureate head right 
Rev: SARMATIA-DEVICTA, Victory advancing right, holding trophy on right arm, 
 branch in left hand, spurning captive seated on ground right, head turned 
 back
Mintmark: STAR (unpublished mintmark). 

RIC VII Trier 435 var, rated R5. (This is not the mintmark "S star AR". The 
 T in the mintmark has the same slightly angled top bar and same wide base as 
 the T in the reverse legend. The mintmark is unlogical but is there 
 nonetheless)

Contributed by Dane for George Clegg (biggyg2), April, 2008.