Watch List notes:

The M.L. Collection of Coins of Magna Graecia and Sicily
Messana

Tetradrachm circa 488-481, AR 16.96 g. Lion's mask facing. Rev. ΜΕ − Σ − Σ − ΕΝΙΟΝ ??Calf head l. Jameson 644 (this coin). SNG Lloyd 1083. Caltabiano 1.1 (this coin).
Extremely rare and a very interesting issue. Old cabinet tone, an absolutely insignificant
metal flaw on reverse field, otherwise good very fine
Ex Sambon-Canessa 1906, Maddalena, 185 and CNG-NAC 40, 1996, 793 sales. From the Jameson and A.D.M. collections.