The Roman RepublicDecimius Flavus.. AR Denarius, 150 BC. Cr. 207/1. B. 1. 3.96 g. 18 mm. Decimius Flavus. AR Denarius, 150 BC. D/ Helmeted head of Roma right; behind, X. R/ Diana in biga right; below horses, FLAVS; in exergue, ROMA. Cr. 207/1. B. 1. AR. g. 3.96 mm. 18.00 Lightly toned, with lovely reddish hues. EF/About EF.