Diocletian (284-305 A.D.) - AE Follis - 27mm, 9.75gr
Obverse - IMP C C VAL DIOCLETIANVS PF AVG
Diocletian, his laureate head right.
Reverse - GENIO POPV-L-I ROMANI
Genius standing left, modius on head, naked but for chlamys over left shoulder,
holding patera (from which liquor flows) in right and cornucopiae in left hand.
HTDelta in Exergue.

Minted at officina Delta in Heraclea (Marmara Ereglisi, Turkey) 297-298 A.D..
Reference:
Sutherland, C.H.V., "Roman Imperial Coinage", Volume 6 (RIC), Heraclea, p531, nr 19a.
Voetter, Otto, "Die Münzen der römischen Kaiser, Kaiserinnen und Caesaren von Diocletianus bis Romulus, Katalog der
hinterlassenen Sammlung und Aufzeichnung des Herrn Paul Gerin" (Voetter-Gerin), Heracleia, Diocletianus, p111, nr 9.
Failmezger, V., "Roman Bronze Coins From Paganism To Christianity 294-364 A.D.", nr 6D
Sear, D.R., "Roman Coins and their Values" (RCV 4th Revised Edition), p303/, nr. 3533-3534, variety from Heraclea mint.
Van Meter, D., "Handbook of Roman Imperial Coins", p277, nr 41, variety with Ol/7.
Suarez, R., "Encyclopedia of Roman Imperial Coins" (ERIC),  p393, nr.98 (B12, O26, R048, T047, M06)
Quality: Extra Fine