Lot Essay
During the period in which this octant was produced its maker, John Gilbert, was based at Postern Row, Tower Hill, London.
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Details
AN EBONY, IVORY AND BRASS 15½IN. RADIUS QUADRANT BY JOHN GILBERT
inscribed on the cross bar Made by JOHN GILBERT Tower Hill LONDON For Charles Godschall Novbr 23rd 1772 , scale divided to 95°, pin hole sight, interchangable shades and pin feet (one missing) -- 17¾in. (45cm.) overall.
inscribed on the cross bar Made by JOHN GILBERT Tower Hill LONDON For Charles Godschall Nov
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