Maximianus (286-305, 306-308, 310 A.D.) -  Pre-Reform AE Antoninianus of his 1st reign - 21.15mm?, 3.77g
Obverse IMP C M A VAL MAXIMIANVS PF AVG Maximianus, his radiate and cuirassed bust right	Reverse CONSERVATOR AVGG Γ in right field. dot XXI dot ΛI dot in exergue. Emperor, holding scepter, and Hercules, leaning on club, standing face to face, sacrificing at altar..
The image below was photographed by Uwe Neumann.The image above is my own scan.
Minted at the ?th officina (I) in Siscia (Sisak, Croatia) in 289-290 A.D. Reference:  Sutherland, C.H.V., "Roman Imperial Coinage", Volume 5 (RIC), Part II, p294?, nr 580/581?. Sear, D.R., "Roman Coins and their Values" (RCV Millennium Edition), Volume 4, p148, nr. 13134?. Cohen, H, "Descriptions Historique des Monnaies frappees sous l'Empire Romain" (C), Volume 6, p523?, nr. 71. Van Meter, D., "Handbook of Roman Imperial Coins" (VM), p278, nr. 24?. Suarez, R., "Encyclopedia of Roman Imperial Coins" (ERIC II),  p768, nr. 1442? (B69, O33, R104, T81, M02, Γ / dot XXI dot ΛI dot) Suarez, R., (ERIC II-Digital), p639, nr. 1442? (B69, O33, R104, T81, M02, Γ / dot XXI dot ΛI dot) Kampmann, U., "Die Münzen der römischen Kaiserzeit" (K, 2e Auflage), p341, 102.18? Ex Uwe Neumann collection. Quality: Very Fine+/Extra Fine- Rarity: C (Common)