Diocletian (284-294 AD). Billon antoninianus. Obv.: IMP C C VAL DIOCLETIANVS AVG Bust of Diocletian, radiate, draped, right. Rev.: CONCORDIA MILITVM• Diocletian, draped, cuirassed, standing right, holding parazonium or sceptre in right hand and receiving Victory from Jupiter; Jupiter, standing left, holding sceptre: A between; XXI in exergue / 23mm 4,03g

Artificial sand patina