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M. Aurelius Cotta. AR Denarius, 139 BC. Obv. Helmeted head of Roma right with necklace of beads; behind, X; before, COTA. Rev. Hercules in biga of centaurs right; below, M·AVRELI (AVR ligate); in exergue, ROMA. Cr. 229/1a; B. (Aurelia) 16. 3.87 g. 18.00 mm. Scarce. An outstanding example, sharply struck, well centred, lustrous and superb. Encapsulated by Classical Coin Grading MS 61.