Brass graphometer, openwork plate signed "N. Bion à Paris". - Lot 275

Lot 275
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Estimation :
600 - 800 EUR
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Result : 600EUR
Brass graphometer, openwork plate signed "N. Bion à Paris". - Lot 275
Brass graphometer, openwork plate signed "N. Bion à Paris". Bion à Paris" and centered on an eight-way compass, with north indicated by a fleur-de-lys. Late 17th - early 18th century D. 16 cm In a wooden case, probably original. (The compass needle needs refixing).
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