Augustus (27 B.C. - 14 A.D.) - Silver Denarius - 18.82mm, 3.26g
Obverse - AVGVSTVS DIVI F Augustus, his bare head right	Reverse - No legend. IMP.X in exergue. Bull butting right
I  took the image above with a digital camera and the one below with a flatbed scanner.
Minted in Lugdunum (Lyon, France) 15-13 B.C. Reference: Sutherland, C.H.V., "Roman Imperial Coinage", Volume 1, revised edition (RIC), p52, nr. 167a. Mattingly, H., "Coins of the Roman Empire in the British Museum", Volume 1 (BMCRE), p78, nr. 451-3 (↓ die axis) Sear, D.R., "Roman Coins and their Values" (RCV Millennium Edition), Volume 1, p319, nr. 1610. Seaby, H.A., "Roman Silver Coins" (RSC), Volume 1, p141, nr. 137. Cohen, H, "Descriptions Historique des Monnaies frappees sous l'Empire Romain" (C), Volume 1, p84, nr. 137. Suarez, R., "Encyclopedia of Roman Imperial Coins" (ERIC II),  p9, nr. 286 (B03, O012, R185, T039, M08, Exe: IMP.X) Suarez, R., "Encyclopedia of Roman Imperial Coins" (ERIC II-eBook),  p8, nr. 286 (B03, O012, R185, T039, M08, Exe: IMP.X) Van Meter, D., "Handbook of Roman Imperial Coins" (VM), p68, nr. 60, variety (a.) Kampmann, U., "Die Münzen der römischen Kaiserzeit", 2e Auflage (Kampmann), p41, nr. 2.57. Quality: Very Fine Rarity: C (Common)