Maximianus (286-305, 306-308, 310 A.D.) -  AE Follis of his 1st reign - 26mm, 9.40gr
Obverse: IMP C M A MAXIMIANVS P F AVG
Maximianus, 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.
K in left field, I over V  in right field. ANT in Exergue.

Minted at the 10th officina (I) in Antioch (Antakya, Turkey) in 300-301 A.D.

Reference: 
Sutherland, C.H.V., "Roman Imperial Coinage", Volume 6 (RIC), Antioch, p619, nr 54b.
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), Antioch, Maximianus Herculius, p36, nr 19.
Sear, D.R., "Roman Coins and their Values" (Sear RCV Millennium Edition), Vol. 4, p162, nr. 13275.
Suarez, R., "ERIC II - The Encyclopedia of Roman Imperial Coins" (ERIC II),  p758, nr.635, (B28, O24, R72, T32, M2).

General reference works:
Failmezger, V., "Roman Bronze Coins From Paganism To Christianity 294-364 A.D.", nr 25bM
Van Meter, D., "Handbook of Roman Imperial Coins", p278, nr. 39, variety with Ol/6.
Cohen, H, "Descriptions Historique des Monnaies frappees sous l'Empire Romain" (C), Volume 6, p511, nr. 184.

Quality: Fine+
Scarcity: C