Watch List notes:

The Roman Republic

Denarius, Central Italy circa 211-208, AR 4.17 g. Helmeted head of Roma r.; behind, X. Rev. The Dioscuri galloping r.; below, rostrum tridens and ROMA in partial linear frame. Sydenham 146. RBW 260. Crawford 62/1.
Rare. Light iridescent tone, minor area of porosity on
obverse, otherwise extremely fine