Watch List notes:

Severina. Augusta, AD 270-275. Antoninianus (22mm, 3.80 g, 6h). Siscia mint, 2nd officina. 11th emission of Aurelian, January-September AD 275. Draped bust right, wearing stephane, set on crescent / Concordia standing left, holding a signum in each hand; R|B//XXI. RIC V 4. Toned with some residual silvering. Good VF.