"Whole Circle Surveyor Architect Signed Delure Paris C.1720"
Interesting whole circle of Surveyor Architect with 6 pinnules signed Delure in Paris. C.1720 Compass with 8-direction wind rose. The North indicated by a Fleur de Lys Pied à patella with butterfly-shaped serage. Good state of preservation. Rare instrument of quality Delure was engineer of the Roy 
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