Watch List notes:

Probus. AD 276-282. Antoninianus (23mm, 3.39 g, 6h). Serdica mint, 3rd officina. 4th emission, AD 277. Radiate bust left, wearing imperial mantle, holding eagle-tipped scepter / Sol facing, driving spread quadriga, head left, raising hand and holding whip; KA•Γ•. RIC V 862; Pink VI/1, p. 45. Silvering toned dark gray, traces of deposits on reverse. Good VF.