Watch List notes:

ANCIENT COINS, GREEK COINS, Kingdom of Macedon, Alexander III the Great (336-323 BC), Silver Tetradrachm, 16.97g, 12h. Mint of Chios, struck 210-190 BC. Head of young Herakles facing right, wearing a lion's-skin. Rev. Zeus seated left, holding an eagle and a sceptre, sphinx symbol at feet, a monogram above, a monogram below seat (Price 2389). Extremely fine.
ex Classical Numismatic Group Auction 67, 22 September 2004, lot 431

Estimate: $ 750