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A late 18th Century brass graphometer signed Kruines Quai de l'Horloge a Paris , with silvered compass, the needle on pivot with clamp, the limb with two fixed sights, the arc engraved 0°-180°-180° - 0°, the rotating alidade with two fixed sights and vernier scales on universal staff mounting with butterfly clamp screw, in fitted fruitwood case -- 13½in wide

Details
A late 18th Century brass graphometer signed Kruines Quai de l'Horloge a Paris , with silvered compass, the needle on pivot with clamp, the limb with two fixed sights, the arc engraved 0°-180°-180° - 0°, the rotating alidade with two fixed sights and vernier scales on universal staff mounting with butterfly clamp screw, in fitted fruitwood case -- 13½in wide
Provenance
Christie's Scientific, Philosophical and Medical Instruments 29 November 1990 lot 203

Lot Essay

This instrument is believed to have belonged to Comte Real at the so-called Cup and Saucer House, Cape Vincent about A.D. 1814 - afterwards property of Hyacinth Peuguet
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