Puckerings has dated this piece to the 1910s.
The eye pieces and focusing wheel are made from carved and polished Mother of Pearl.

Excellent condition with minor wear measuring 3 5/8" x 1 3/8"; 1 3/4" expanding to 2 3/8". The case measures 4 1/2" x 2" x 2 1/4".
Item ID:39460
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Puckerings has dated this piece to the 1910s.
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