Constantius I Chlorus - Caesar 293-305 AD, Augustus 305-306 A.D. -  AE Follis - 27mm, 10.69gr
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.
E in right field, ANT dot in Exergue.

Minted at the 5th officina  (E) in Antioch (Antakya, Turkey) in 304 or 305 A.D. during his reign as Caesar under Maximianus.

Reference:
Sutherland, C.H.V., "Roman Imperial Coinage", Volume 6 (RIC), Antioch, p621, nr 59a
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 12.
Suarez, R., "Encyclopedia of Roman Imperial Coins" (ERIC),  p418, nr. 54-57 variety (B08, O30, R034, T042, M2)

General reference works:
Sear, D.R., "Roman Coins and their Values" (RCV 4th Revised Edition), p312, nr. 3673, variety (mint mark ANT dot)
Failmezger, V., "Roman Bronze Coins From Paganism To Christianity 294-364 A.D.", nr 6C
Van Meter, D., "Handbook of Roman Imperial Coins", p280, nr 25, variety Ol/8.
Kankelfitz, B.R., "Katalog römischer Münzen, von Pompejus bis Romulus, Band II", p418, 13V, Av. Leg 1.
Kampmann, U., "Die Münzen der römischen Kaiserzeit", p380, nr. 121.38.

Quality: Very Fine
Rarity: C