Watch List notes:

Probus. 276-282 AD. Antoninianus, 4.35g (12h). Siscia, . Obv: IMP C M AVR PROBVS P AVG Bust helmeted, radiate, cuirassed left, holding spear and shield. Rx: VIRTVS - PR - OBI AVG Mars walking right holding spear and trophy over shoulder, XXI in exergue, V in right field. RIC 816. Cf. Alföldi, Probus 96/196. Cohen 896 (C ). A variety unknown to Alföldi, who cites just two coins comparable to ours, in Budapest and Vienna respectively, but his 96/196 has officina Q not V in right field, and his 96/197 has officina V, but with the numeral placed not in field but in exergue after XXI.