Watch List notes:

THRACO-MACEDONIAN TRIBES, Derrones. Circa 480-465 BC. Diobol (Silver, 17 mm, 1.33 g, 9 h). Bull standing right; above, bird flying right. Rev. Corinthian helmet right. Cf. HPM p. 15, 31, pl. II, 17-8 (Tetrobol, as King Dokimos). Cf. SNG ANS 936 (Tetrobol). Possibly unpublished as a Diobol. Very fine/very good.
From the Orca collection, USA.