Severina, Billon antoninianus, Siscia mint.

SEVERINAE AVG, draped, diademed bust right on crescent.
CONCORDIAE MILITVM, Concordia standing left, holding standard 
in each hand. 
Q to right.
Mintmark XXI. 
RIC 13.

With permission of H.D. Rauch Auctions. Sold for 105 Euros.