Watch List notes:

Cn. Gellius. AE Quadrans, 138 BC. Obv. Head of Hercules right, wearing lion's skin; behind, three pellets. Rev. CN GEL. Prow right; in exergue, ROM[A]. Cr. 232/4. AE. 4.99 g. 18.50 mm. RR. Very rare variety without the mark of value before the prow (cited by Crawford, RRC I, p.265). A choice example. Lovely emerald green patina. Good VF.