This Hemisferium instrument called Gunter's Quadrant is a reproduction based on two Gunter quadrants made in the mid Nineteenth century The original pieces are at the Greenwich National Maritime Museum near London.
On the front the instrument presents a local height quadrant furnished with a pinule system for establishing the sun's height.On the backside the is a nocturnal, like those used by ancient sailors to place the brightest circumpolar stars and aid their nightly observations.
This piece is fashioned of brass and comes complete with wooden stand, cotton plumb line with brass pearl and booklets explaining use and history. The wooden base is ideal for placement of a commemorative plaque in recognition of achievement or an event.
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