Watch List notes:

THE ALFRED FRANKLIN COLLECTION OF ANCIENT COINS, GREEK SILVER COINS, Kingdom of Macedon, Archelaos (413-399 BC), Silver Stater, mint of Aigai, head of Apollo facing right, wearing a taenia, rev APX-[E]ΛA-O, bridled horse standing right, all within a shallow incuse square, 10.32g, 12h (Westermark, in Essays Carson & Jenkins, group II, series 1, O18/R25, this coin; SNG ANS 70). Attractive cabinet tone, very fine, rare.
from the Ptolemais Hoard (IGCH 365)
ex Auctiones 19, 1989, lot 597
ex Spink Auction 3014, 8 October 2003, lot 29

Estimate: £500-700