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James Kynvyn, Lastra per uso nautico
James Kynvyn, Plate for nautical use

England 1595
Brass; 46,7x35,5 cm
Florence, Istituto e Museo di Storia della Scienza, inv. 663

Used for taking bearings at sea, this instrument closely resembles the one illustrated in the Arcano del Mare by Robert Dudley, from whom it was bequeathed.