Hi. I picked up this coin along with 3 others including Claudius II. I can read Valentinian but find myself unable to guess whether it is Valentinian I, or II, or even the Third. I need your help to better ID this coin. Thanks.. Charles
Valentinian I Obv.: D N VALENTINIANVS P F AVG, rosette diademed, draped and cuirassed bust right. Rev.: VIRTVS EXERCITI, Valentinian standing left holding labarum in right and globe in left, foot on captive // ANTΔ (Antioch mint, 4th officina). Reference: RIC IX: 63b.
It is Valentinian II, 375-392. See here: http://esty.ancients.info/ricix/type31.html for more about the type and more images. There are many pages on that site that you might find interesting.
Sorry guys, I made a typo and it's too late to edit. The rest of the attribution is correct: RIC IX Antioch 63b, Valentinian II.