Sector by Jean Maulevaut circa 1715

Sector by Jean Maulevaut circa 1715


An early and beautifully engraved sector by Jean Maulevaut (worked circa 1712-1720)



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Categories: Navigational instruments, Drawing Instruments


Offered for sale is a circa 1715 brass sector featuring exquisite floral designs at the hinge, typical mathematical scales and alchemical symbols including tiny faces on the golden sun sign, and early Roman letters and spelling such as “Poids de Bouletz.”

Instrument maker Jean Maulevaut is recorded working in Paris at the Quai de l’Horloge under the sign “Au Niveau” in 1712. His widow is recorded at the same address in 1721. The sign “Au Niveau” was taken up by instrument maker Claude Langlois in 1727, before he moved to the Louvre Galleries in 1735.



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US Instrumentum

Instrumentum is based in the United States and specializes in high quality 17th and 18th century scientific instruments for mathematics, architecture/engineering, navigation, and the building trades. We have been collecting instruments, mainly from Europe, for over 20 years and have a particular interest in early continental and British architectural drafting sets and dividers. Please contact us at

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