Here I am again with a stumper. 3" diameter x 3.5" tall brass something. I saw a pair on an antiques auction site-same size, shape, design, patina of the brass EXCEPT top part was solid & back flush, called Art Deco bookends. This thing looks related somehow but the center screwed down piece doesn't make sense.First thought was to hold letters, (mail). Again center think throws me off. What is it? Im not sure I even believe Art Deco. Any idea? No maker marks.
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