Watch List notes:

PTOLEMAIC KINGS of EGYPT. Ptolemy I Soter. As satrap, 323-305 BC. AR Tetradrachm (26.5mm, 15.59 g, 1h). Ptolemaic standard. In the name of Alexander III of Macedon. Alexandreia mint. Struck circa 311/0-305 BC. Diademed head of the deified Alexander right, wearing elephant skin, aegis around neck with tiny Δ in scales / Athena Alkidemos advancing right; to right, XA monogram, Corinthian helmet right, and eagle standing right on thunderbolt. Svoronos 162; Zervos Issue 28; SNG Copenhagen 29. Near EF, dark iridescent toning, overstruck on uncertain type, scratch under tone on obverse.