This lot comprises a polished brass nautical sextant, presented as a contemporary decorative replica of a traditional maritime navigation instrument. The device features a curved arc engraved with a numerical degree scale ranging from 0 to 120. Key components include a sighting telescope, an index mirror, a horizon mirror, and three hinged coloured glass filters designed for solar observations. The instrument is fitted with an index arm, a vernier scale, and a tangent screw for fine adjustment. The sextant is housed in a bespoke hexagonal storage box crafted from a reddish-brown hardwood, featuring brass hardware and a side-mounted swing-hook latch. The interior is lined with black velvet to protect the polished surfaces. The design and construction are typical of commemorative or presentation pieces made in the style of 19th-century makers such as Kelvin and Hughes.
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