Antique Victorian Ladies Buttoned Shoe Gaiters or Spats

Victorian Brown button spats/shoe covers. I don’t know the history on these, but they came out of my great grandma’s house 30 years ago. All buttons are intact. No buckle bottom. There’s a 6 (?) stamped on the inside. Other than a couple of very minor moth spots (?) they are in really great condition. See pictures.

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