Kingsdown Antiques has dated this piece to the 1920s.
They come with a green cloth bag for safe keeping.

The disconnecting handle is based on a slot and twist system. Slot the catch on the right side of the main body of the opera glasses into the handle. The handle should now be parallel to the main body but extending out to the back. Then gently twist downwards until the handle is 90 degrees to the glasses body.

Measurements:
Height: 1 1/2" (approx. 4cm)
Width: 4" (approx. 10cm)
Depth: 2 3/8" (approx. 6cm)
Handle length: 5 1/2" (approx. 14cm)
Handle length (extended): 9" (approx. 23cm)
Total weight: 210g
In good condition – there is no damage to the mother of pearl.
Kingsdown Antiques has dated this piece to the 1920s.
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