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15-inch large mahogany sextant, King’s Patent, with reversible handle, 1790
Gregory & Wright, London
Maker:
Collectie:
NavigArte
Very large sextant, which can be used both vertical and horizontal angle measurements.
1/1
Very large Ebony Frame with Brass index arm and fittings.
Ivory plate. Double sided bras scale.
Handle in Lignum Vitae, can be positioned in vertical or horizontal fixed position.
Both Gabriel Wright and Henry Gregory held royal patents for navigational instruments, This "Kings Patent" refers to the index mirror: Kings patent Platform of index mirror can be rotated by a setscrew.
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