A 7½-INCH RADIUS SEXTANT
Gilbert, early 19th century
signed on the arc Gilbert London, with lattice frame, silvered scale 0°-140° with vernier, seven shades, wooden handle, in fitted case with accessories.
11in. (28cm.) long in case
A 7½-INCH RADIUS SEXTANT
Gilbert, early 19th century
signed on the arc Gilbert London, with lattice frame, silvered scale 0°-140° with vernier, seven shades, wooden handle, in fitted case with accessories.
11in. (28cm.) long in case
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