Probus. AD 276-282. Antoninianus (23mm, 3.53 g, 6h). Serdica mint, 4th officina. 4th emission, AD 277. Radiate, helmeted, and cuirassed bust left, holding spear and shield / Probus on horseback right, spearing enemy; shield below; KA•Δ•. RIC V 878; Pink VI/1, p. 45. EF, brown surfaces, small spot of active green corrosion on obverse.