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James Kynvyn [attr.], Quadrante nautico
James Kynvyn [attr.], Nautical quadrant

England 1595?
Brass; 31,8x38 cm
Florence, Istituto e Museo di Storia della Scienza, inv. 3362, 242

This instrument was used to calculate the coordinates of celestial bodies during navigation (altitude above the horizon and position angle relative to the magnetic meridian). Provenance: Robert Dudley bequest.