Diocletian. A.D. 284-305. Æ follis (26.9 mm, 10.01 g, 7 h). Serdica, A.D. 305-306. D N DIOCLETIANO FELICISSIMO SEN AVG, laureate bust right in imperial mantle, holding olive branch and mappa / PROVIDENTIA DEORVM QVIES AVGG, S-F, Providentia standing right, extending hand to Quies, facing left, holding branch and leaning on scepter; A between them, ·SM·SD· in exergue. RIC 15a. aVF.