Severus II AE follis, Siscia. 305-307 AD.

FL VAL SEVERVS NOB CAES, laureate head right.
CONCORDIA IMPERI, Concordis standing left, holding spear and 
cornucopiae.
VI in right field
Mintmark SISA.

RIC VI Siscia 172 var (unlisted obv. legend)

Used with permission of CNG (cngcoins.com), June, 2012