Watch List notes:

Sicily, The Mamertinoi Æ Tetras. Messana, circa 220-200 BC. Laureate head of Zeus to right; monogram (mark of value) behind / Hermes standing to left, holding branch and kerykeion; at feet, ram running to left, head reverted; MAMEPTINΩN around. CNS I, 37; SNG ANS 437; SNG Copenhagen 457; HGC 2, 856. 6.20g, 19mm, 1h.

Very Fine. Extremely Rare; only four other examples on CoinArchives.

From a private European collection.