Constantine II. A.D. 337-340. 17mm x 19mm, 2.61g 
Siscia A.D. 321-4. 

Obv. CONSTANTINVS IVN. NOB. C. laureate head r. 
Rv. CAESARVM NOSTRORVM around VOT X in two lines in
laurel-wreath.
Mintmark Delta SIS sunburst. 
RIC 182. 

With permission of Pecunem Gitbud & Naumann, Jan. 2015.