Diocletian as Senior Augustus (305-311 AD). AE Follis. Abdication issue. Ticinum mint. Struck circa 305 AD. D/ DN DIOCLETIANO FELICISSIMO SEN AVG. Laureate bust right, wearing imperial mantle, holding olive branch and mappa. R/ PROVIDENTIA DEORVM QVIESAVGG. Providentia standing right, extending hand to Quies standing left, holding branch and leaning on scepter; pellet to right; in exergue, PT. RIC 57a. AE. g. 11.58 mm. 29.00 Area of roughness on reverse. About EF.