Severus II (305-307 A.D.) -  AE Follis - 27mm, 9.62g
Obverse - FL VAL SEVERVS NOB CAES Severus II, 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. I in right field, ANT : in Exergue.
The image below was photographed by Numis Kimel. I took the image above with a flatbet scanner. And the image at the bottom, showing a close-up of the mint mark, with a digital usb microscope at 40x enlarged.
Minted at the 10th officina (I) in Antioch (Antakya, Turkey) in 306 A.D during his reign as Caesar under Contantius I Chlorus. Reference: Sutherland, C.H.V., "Roman Imperial Coinage", Volume 6 (RIC), Antioch, p625, nr 75a. 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), 1921, p41, #3. Failmezger, V., "Roman Bronze Coins From Paganism To Christianity 294-364 A.D."(Failmezger), nr 46aS. Suarez, R., "Encyclopedia of Roman Imperial Coins II" (ERIC II),  p822, nr. 56 (B3, O2, R17, T11, M2, exe: I/ANT:) Suarez, R., "Encyclopedia of Roman Imperial Coins II" (ERIC II-eBook),  p822, nr. 56 (B3, O2, R17, T11, M2, exe: I/ANT:) General reference type (no detailed determination by mint mark or officina): Van Meter, D., "Handbook of Roman Imperial Coins" (VM), p282, nr 8., variety with Ol/2. Kampmann, U., "Die Münzen der römischen Kaiserzeit", 2e Auflage (Kampmann), p438, nr. 146.59. Quality: Very Fine+ with some pitting and encrustations. Rarity: S (Scarce)