Watch List notes:

Seleukid Kingdom. Diodotos Tryphon. 142-138 B.C. AE 18 (18.2 mm, 5.54 g, 11 h). Antioch on the Orontes mint. Diademed head right / ΒΑΣΙΛΕΩΣ ΤΡΥΦΟΝΟΣ ΑΥΤΟΚΡΑΤΟΡΟΣ, spiked Macedonian helmet adorned with goat horn; star to lower left. SC 2034.2e; HGC 9, 1061. aVF. 

Ex CNG E-auction 369, lot 220.