Puckerings has dated this piece to the 1910s.

Each of the eyepieces is signed by Mappin and Webb, Paris, Mappin and Webb, a British company expanded their store presence internationally in the first part of the twentieth century, opening stores in Buneos Aires, Paris, Lausanne, Nice, Vichy, Rome, Cairo, Shanghai and Biarritz, Hong Kong and Mumbai (formerly called Bombay).

They come complete with a (new) velvet pouch for protection.
Excellent working order measuring 4 1/4" x 1 1/2" x 2 3/8". Dating to c.1910.
Item: 44181
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Puckerings has dated this piece to the 1910s.
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