Watch List notes:

Macedon, Olynthos, Chalcidean League (432/31-379 BC), AR Tetrobol, laureate head of Apollo right, rev. Kithara, 2.27g, 9h (Robinson -; Clement, Group H; HGC 3, Part I, 502), elongated flan, near very fine.
Provenance
Gorny and Mosch, Auction 255, 10 March 2018, lot 3103
Gorny and Mosch, Auction 237, 7 March 2016, lot 1256
Estimate: £50 - £80