Watch List notes:

Anonymous. 211 BC. Æ As (32mm, 34.27 g, 12h). L. Cornelius (C) series. Mint in Sardinia. Laureate head of bearded Janus; I (mark of value) above / Prow of galley right; I (mark of value) above, C to right. Crawford 63/2; Sydenham 157; RBW 261. Green patina with touches of dark brown, some porosity, cleaning and smoothing scratches. Fine. Extremely rare, only three in Coin Archives, including this coin.

Ex ArtCoins Roma Auction 59 (20 May 2018), lot 306.