AT or TA series. AE Quadrans, 169-158 BC. Obv. Head of Hercules right; behind, three pellets. Rev. Prow right; above AT or TA monogram; before three pellets; below, ROMA. RBW 824; Cr. 192/4. 6.77 g. 20 mm. RR. Very rare issue; green patina. About VF.
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