Gratian AE3. 

Obv: DN GRATIA-NVS PF AVG, pearl-diademed, draped and cuirassed bust right 
Rev: SECVRITAS-REIPVBLICAE, Victory advancing left holding wreath and palm 
 branch. 
Mintmark R dot QVARTA. 

RIC IX Rome 24c, type xii (b) rated scarce

Contributed by Dirty Old Coins, June, 2005.