Watch List notes:

MA series. AR Denarius, c. 199-170 BC, uncertain mint. D/ Helmeted head of Roma right; behind, X. R/ The Dioscuri galloping right; below, ΛA and ROMA in linear frame. Cr. 172/1 var. (ΛA instead of MA ligate) and pl. XXVIII,5. AR. g. 4.06 RR. Very rare. Full weight and broad flan. An outstanding example, from masterly egraved and fresh dies, brilliant and lightly toned. EF.

Very rare variety with M separated into Λ and A: see RBW Collection, NAC 61, 2011, lot 725.