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This is a Late Roman Bronze of Emperor Valens: obverse legend DNVALEN SPFAVG (D N Valens P F Aug). Reverse type GLORIARO MANORVM (gloria Romanorum), emperor holding standard and dragging captive by the hair. The mintmark is TESA or TESB; Thessalonica, Greece.
See
This Wildwinds page; scroll down to Thessalonica mint and see several coins of this basic type, like
this one.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis