Tryphon, Seleukid Kingdom. 142-139 BC. AE17 Chalkous. 
Antioch. 

Diademed head right.
BASILEWS TRYFANOS AYTOKRATOROS, Macedonian helmet adorned 
with spike and ibex horn, palm branch in inner left field. 

Seyrig 24; Babelon Rois 1049-1050; BMC 13.
SC 2034.1; Hoover HGC 1061.

With permission of Roma Numismatics Sale 34, Lot 127, Feb. 2017.