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Mahogany octant

Thomas Ripley , London
Maker: 
Collectie: 
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Mahogany octant with a radius of 15½ inches and a fiducial boxwood scale, 1774

15½IN. RADIUS MAHOGANY AND BOXWOOD FIDUCIAL OCTANT BY THOMAS RIPLEY, LONDON, 1774
the scale divided to 90º, wooden index arm with bone-edged reader, maker's plate inscribed ‘Made By Thos Ripley at ye Hermitage Bridge / LONDON / For David Bartholomo, Augt 23, 1774’, pinhole sights, interchangeable shades, mirrors and peg feet -- 18in. (45.5cm.) overall
One shadow replaced by plastic dark brown shade

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