Butterfly (and vine branch series). AE As, c. 169-158 BC. Obv. Laureate head of Janus; above I. Rev. Prow right; above, butterfly; before, I; below, ROMA. Cr. 184/1b. AE. 25.35 g. 33.00 mm. RR. Very Rare; this type is much rarer than the butterfly on vine-branch type (Crawford 184/1a), clear symbol. Reddish brown patina with cuprite spots. VF.