Diocletian. As Senior Augustus, AD 305-311/2. Æ Follis (23mm, 6.49 g, 12h). Antioch mint, 4th officina. Struck AD 310-311. D N DIOCLETIANO FELICISSIMO SEN AVG, laureate bust right, wearing imperial mantle, holding olive branch and mappa / PROVIDENTIA DEORVM QVIES AVG, Providentia standing right, receiving olive branch from Quies standing left, holding scepter; (crescent)/Δ//ANT. RIC VI 150. Green patina, thick reddish earthen encrustation. Near VF. Rare.