Constantius I Chlorus - Caesar 293-305 AD, Augustus 305-306 A.D. -  AE Follis - 27mm, 9.91gr
Obverse - FL VAL CONSTANTIVS NOB CAES
Constantius, his laureate head right.
Reverse - GENIO POPV-LI 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 officina 10 (I) in Antioch (Antakya, Turkey) in 300 or 301 A.D. during his reign as Caesar under Maximianus.

Reference:
Sutherland, C.H.V., "Roman Imperial Coinage", Volume 6 (RIC), Antioch, p620, nr 55a
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, Constantius Chlorus, p38, nr 10.
Sear, D.R., "Roman Coins and their Values" (Sear RCV Millennium Edition), Vol. 4, p252, nr. 14069.

General reference works:
Failmezger, V., "Roman Bronze Coins From Paganism To Christianity 294-364 A.D.", nr 25bC
Van Meter, D., "Handbook of Roman Imperial Coins", p280, nr 25, variety Ol/8.
Suarez, R., "ERIC II - The Encyclopedia of Roman Imperial Coins" (ERIC II),  p787, nr.518, (B22, O30, R34, T51, M2).
Cohen, H, "Descriptions Historique des Monnaies frappees sous l'Empire Romain" (C), Volume 7, p66, nr. 89.

Quality: about Very Fine
Rarity: C