Watch List notes:

Thraco-Macedonian Tribes, Derrones(?) AR Hemiobol. Circa 5th Century BC. Head of Athena(?) to left wearing a Corinthian helmet / Corinthian helmet, Δ below; all within incuse square. Naumann 98, lot 44 (Greek, uncertain); otherwise apparently unpublished in the standard references. 0.26g, 8mm, 9h.

Very Fine. Excessively Rare, possibly one of only two known examples.

Ex Solidus Numismatics, Online Auction 16, 17 June 2017, lot 52 (hammer: €610) .