Watch List notes:

Danubian Celts (c. 3rd – 2nd Centuries BC) AR Tetradrachm, in the types of Philip II, 13.23g. Stylised laureate head of Zeus facing right. Rev. Rider on horseback right. (Allen, Celtic Coins in the British Museum, pl.XXII, S107; Göbl, OTA, 167). About Extremely Fine.

Ex. Spink Auction 16004 (22/03/2016), lot #1020 (hammer £550).