Watch List notes:

The Robert P Ball Cabinet of Ancient Coins | Sicily, Katana, AR Tetradrachm, c. 450 BC, Charioteer riding slow quadriga right, holding reins, dotted exergual line below, rev. laureate head of Apollo right, KA[TANAI]-ON surrounds, 3h (HGC 2, 566; SNG ANS 1240–1246; SNG Lloyd 891–893; Boston MFA Supplement 22; Pozzi 410 same dies; Gillet 381 same dies Kraay & Hirmer 35; Rizzo Pl. X, 1–14), lightly toned and largely centred, very fine, rare.
Provenance
Bank Leu, by private treaty, 1970 - CHF2,650
Estimate: $2000 - $3000