Watch List notes:

The Robert P Ball Cabinet of Ancient Coins | Caria, Rhodes, AR Didrachm, c. 340-316 BC, head of Helios facing slightly right, rev. RODI[ON] rose with bud, bunch of grapes in left field, E monogram below, all within shallow incuse square (BMC 233/27; SNG von Aulock 2790; SNG Keckman 437), rubbed and toned, very fine.
Provenance
Bank Leu, by private treaty, 1969 - CHF500
Estimate: $140 - $200