Watch List notes:

ROMAN & BYZANTINE COINS

Q. Marcius Libo, 148 BC. Denarius (Silver, 19mm, 3.39 g 6), Rome. Helmeted head of Roma to right; behind, LIBO; before, X. Rev. The Dioscuri galloping right; below horses, Q MARC and below that, ROMA in a linear frame. Babelon (Marcia) 1. Crawford 215/1. Sydenham 395. A most attractive example, nicely toned and sharply struck. Extremely fine.

From an old English collection, Numismatica Ars Classica 70, 16 May 2013, 28. and ex Tkalec & Rauch, 14 April 1986, 247.