RecordSextant< 1 of 1 > Back probably made in London
SextantThis brass sextant was made around 1790, probably by Jesse Ramsden (1735-1800), a scientific instrument maker based in London. The design for this type of sextant was patented in 1788 by Edward Troughton, another London-based scientific instrument maker. The 'pillar frame' sextant with silver scale has two thin frames of plate brass held together by a series of brass pillars. The design was previously popular in the navy, and this instrument is engraved on the upper bridging joint 'Capt Wood', for a one-time owner. This effort - to combine lightness and rigidity in the sextant frame - was patented by one of Ramsden's competitors, Edward Troughton. According to a contemporary in 1828, these were 'in great request in the naval service'. Record detailsTo search on related items, click any linked text below.
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