£200
Ø A 9½IN. RADIUS VERNIER OCTANT BY GEORGE LOWDEN JUNIOR, DUNDEE, CIRCA 1840
the ebony 'double T' frame with inset ivory maker's plate and scale divided to 105º, brass index arm, sighting tubes, seven shades, mirrors and wooden handle, contained within lined keystone case -- 12in. (30.5cm.) wide, IDN: 53WLV5Y1
Good overall condition. Case has corner missing from base.
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