Galerius (305-311 A.D.) -  AE Follis - 30mm, 10.39gr
Obverse - MAXIMIANVS NOB C
Galerius, his laureate and cuirassed bust right.
Reverse - GENIO POP-VLI ROMANI
Genius standing left, modius on head, naked but for chlamys over left shoulder,
holding patera in right above altar, and cornucopiae in left hand.
B in right field. PLC in Exergue.

The image below was photographed by Andrew Thall. The image above is my own scan.
The coin is featured on wildwinds at http://wildwinds.com/coins/ric/galerius/_lyons_RIC_164.jpg
Text at http://www.wildwinds.com/coins/ric/galerius/_lyons_RIC_164.txt

Minted at the 2nd officina in Lugdunum (Lyon, France) between 301 and 303 A.D. during his reign as Caesar under Diocletian
Reference:
Sutherland, C.H.V., "Roman Imperial Coinage", Volume 6 (RIC), Lugdunum, p252, nr 164b.
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), Lugdunum, Galerius Maximianus, p173, nr 17.
Failmezger, V., "Roman Bronze Coins From Paganism To Christianity 294-364 A.D.", nr 25cG
Van Meter, D., "Handbook of Roman Imperial Coins", p281, nr 31.
Suarez, R., "Encyclopedia of Roman Imperial Coins" (ERIC),  unlisted (B19, O39, R038, T33, M08)
Quality: Very Fine+