Constantius II, AE3 of Siscia. AD 337-355. 22.1 mm. 5 g.

DN CONSTAN-TIVS PF AVG, pearl-diademed, draped and cuirassed bust right, A behind head.
CONCORDIA-MILITVM, emperor, diademed and in military dress standing facing, looking left, holding labarum banner in each hand. 
Star above, A in left field. 

Mintmark BSIS star. 
RIC VIII Siscia 276.

With permission of Eidmar auction 3, lot 660 (on biddr.com), March 2024.