Watch List notes:

Q. Opimius. 169-158 BC. Æ As (30mm, 22.07 g, 4h). OPEI series. Rome mint. Laureate head of bearded Janus; I (mark of value) above / Prow of galley right with peaked deck structure; OPEI above, I (mark of value) to right. Crawford 190/1; Sydenham 363; Type as RBW 811. Dark brown patina with touches of green, some fill on reverse. VF.

From the Andrew McCabe Collection, purchased from Numismatica Ars Classica, 2010.