C.375-450 AD, the period of the fall of the Empire under invasion by the Barbarians. See https://www.forumancientcoins.com/numiswiki/view.asp?key=Military%20Belts image 7 top left for an identical example identified as Sommer type 1.A.B. Just over 1 1/4” length with sheet plate and D shaped buckle. Both securing rivets intact.  Roman legionaries wore two belts, crossed, suspending, respectively, the sword and dagger.
Stock Number: B2378

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