Watch List notes:

Probus. AD 276-282. Antoninianus (22mm, 3.28 g, 12h). Serdica mint, 4th officina. 4th emission, AD 277. Radiate and cuirassed bust right / VIRTVS PROBI AVG, Probus on horseback right, spearing enemy whose shield lies beneath horse; KA•∆•. RIC V 880 var. (officina mark); Pink VI/1, p. 45. EF, some silvering.