Watch List notes:

Diocletian (284-305), Antoninianus, Heraclea, AD 291; BI (g 3,42; mm 21; h 12); IMP C C VAL DIOCLETIANVS P F AVG, radiate, draped and cuirassed r., Rv. CONCORDIA MI - LITVM emperor standing r., holding parazonium receiving Victoy from Juppiter standing l., holding sceptre; above, in the centre, Γ; in ex. XXI. RIC 284; C 34.
Very fine.