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This is an ancient Roman copper As, of Emperor Domitian, it was struck at Rome between 90 - 91 AD
Obverse: IMP CAES DOMIT AVG GERM COS XV CENS PER PP "Supreme commander (Imperator), Caesar, Domitian, emperor (Augustus), conqueror of the Germans, consul for the 15th time, censor for life, father of the nation." Laureate head right
Reverse: FORTVNAE AVGVSTI "For the good fortune of the emperor (Augustus)" Fortuna standing left, holding rudder and cornucopiae.
A nice coin, with a great portrait and a nice dark green patina.
DENOMINATION: As (1/16 of a denarius)
DATE: 81 - 96 AD (This coin was minted in Rome in 90 - 91 AD)
SIZE: 26mm diameter
WEIGHT: 10.93 grams
ATTRIBUTION: RIC II 707; Cf. RIC 394 (as); C 132 (as)
PROVENANCE: Private collection. Cologne, Germany.