Watch List notes:

MA series. AE Triens, c. 210 BC. Sardinia. Obv. Head of Minerva right; above, four pellets. Rev. Prow right; above, ROMA; before, MA; below, four pellets. Cr. 64/4. AE. 5.07 g. 22.00 mm. RRRR. Excessively rare, apparently the third specimen known. Good F/About VF. The dating of this coin has been suggested by Roberto Lippi, based on a new soon to be published study.