Robert Belcher Antiques has dated this piece to the 1910s.

The sextant is a superb and rare piece of historical miniature engineering. It is in fine condition and in good working order.
The elements of this instrument are good. It has clean adjusting mirrors, a telescopic eyepiece, a silvered vernier scale with a hinged adjustable magnifier, and a locking adjustment key that has to be unscrewed, removed, and repositioned to operate the instrument.

The sextant is protected by a heavy brass screw down case. It is signed Ryland & Son Ltd London with the military arrow mark.
The brass case reverses and screws onto the underside and forms the hand grip when in use.
English, circa 1915
Dimensions of enclosed case:
Height 4cm x width 7.8cm x depth 7.8cm
Robert Belcher Antiques has dated this piece to the 1910s.
Robert belcher antiques was established in 1984 and is a high quality retailer of interesting, rare antiques and decorative items.
You can view the stock and full dealer information on the Robert Belcher Antiques Profile Page