Watch List notes:

Severina. Augusta, A.D. 270-275. AE antoninianus (21.7 mm, 4.09 g, 11 h). Serdica mint, A.D. 274-275. SEVERINA AVG, draped bust right, wearing stephane, set on crescent / CONCORDIAE MILITVM, Concordia standing, holding standard in each hand; S/XXT in exergue. RIC 13. EF.