Diocletian. As Senior Augustus, A.D. 305-311/2. AE follis (26.3 mm, 6.53 g, 11 h). Alexandria mint, struck A.D. 308-310. Abdication commemorative. D N DIOCLETIANO BAEATISS, laureate bust right, wearing imperial mantle, holding olive branch and mappa / PROVIDENTIA DEORVM, Providentia standing left, extending branch to Quies standing opposite who holds a scepter; Є/KP between, ALE in exergue. RIC 109. aVF, green patina, porous. Scarce.