Here's one I have. It looks Victorian but is it for a waistbelt or crossbelt and how should it attach to the belt? It measures just over 2 and a half by just over 3 and a half inches, and will accept a belt between 2 inches and 2 and three quarter inches. The square opening in the front is just over one inch by 2 inches. There is no evidence that the buckle ever included prongs.
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