Watch List notes:

Sicily, The Mamertinoi, Pentonkion, Messana, c. 220-200 BC;, AE (g 12,94; mm 25; h 9), Laureate head of Ares l., dotted border, Rv. MAMEPTINΩN, horseman standing l., holding distaff and horse by head; at l., Π. CNS I, n. 25; SNG Copenhagen 446; SNG ANS 427.
Green patina, good very fine.