Watch List notes:

Greek Coins
Cyrene

Didrachm circa 525-480, AR 8.03 g. Silphium plant with four leaves and two fruits. Rev. Gorgoneion facing in dotted frame within shallow incuse square. BMC –, cf. 10 (tetradrachm). Traité –. The New York sale XXXII, 2014, 189.
Of the highest rarity, apparently the finer of apparently only two specimens known.
Unusually struck on very good metal, light tone and good very fine