Puckerings has dated this piece to the 1910s.

This one is made from polished brass and is excellent quality, un-marked but probably by Optimus. The top of the glass is domed, always more sought-after than the flat lenses.
Wonderful condition, with a good magnification and a hefty piece to keep those papers in place. 5 1/2" in diameter x 2 3/4" high.
Item: 44077
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Puckerings has dated this piece to the 1910s.
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