I added another mintmark to my site on Justinian's mintmarks at Antioch. http://augustuscoins.com/ed/interesting/Justinian.html The coin is large at 36-33 mm [larger than a US half dollar which is 30.6 mm; a silver dollar is 38.1 mm] and 19.70 grams. This coin is year 21 = 547/8. Long before Antioch had changed its name to Theopolis (Theoupolis) [See that site for why]. The mintmark's first letter is odd. Regular shaped T's had been used earlier, so there is no accepted explanation for this first symbol which must have a "T" or a "TH" sound, followed by an "H" which is a Greek eta, for our E, and then UΠ (Π with a tiny o above and a slash through its right side, indicating an abbreviation of "POLIS".) THEOUPOLIS. Sear 220. DO I Justinian 218B. Hahn 145a year 21. I have written CT about Justinian's coins at Antioch before: https://www.cointalk.com/threads/the-antioch-mint-under-justinian.319008/ If you didn't add your coins to the thread then, I wish you would now!
Lovely coin, Valentinian. I have two of the earlier Justinians with the profile portraits. The darker one has one of the most "late Roman" portraits I have in my small Byzantine collection. The sandy one seems more typical.
