Since no one else is responding I'll just leave you with the obvious guess you were probably leaning to anyway. Size and weight are fine for this and I kind of think I can believe those letters are what is to the right of Nike's wing.
https://www.acsearch.info/search.html?id=5282992

Seleukid Kingdom. Demetrios II Nikator. Second reign, 129-125 B.C. Æ (17 mm, 6.73 g, 12 h). Antioch on the Orontes. Laureate head of Zeus right / ΒΑΣΙΛΕΩΣ ΔΗΜΗΤΡΙΟΥ ΘΕΟΥ ΝΙΚΑΤΟΡΟΣ, Nike advancing left, holding wreath and palm branch; left field control illegible. SC 2170: HGC 9, 1133.
https://www.acsearch.info/search.html?id=5282992

Seleukid Kingdom. Demetrios II Nikator. Second reign, 129-125 B.C. Æ (17 mm, 6.73 g, 12 h). Antioch on the Orontes. Laureate head of Zeus right / ΒΑΣΙΛΕΩΣ ΔΗΜΗΤΡΙΟΥ ΘΕΟΥ ΝΙΚΑΤΟΡΟΣ, Nike advancing left, holding wreath and palm branch; left field control illegible. SC 2170: HGC 9, 1133.






















