Watch List notes:

M. Atilius Serranus. Denarius circa 148, AR 18.50 mm., 3.77 g.
Helmeted head of Roma r., behind, SARAN and below chin, X. Rev. The Dioscuri galloping r.; below horses, M·ATILI and in exergue, ROMA. Babelon Atilia 8. Sydenham 398b. RBW 905. Crawford 214/1b.

Lovely old cabinet tone, well centred, minor marks on obv, otherwise About Extremely Fine/Good Very Fine.