18c french brass sector

Dec 30, 2017. 12:48 UTC
18C French Brass Sector Item images 2f1514638157333 ipa72kfysh5g 69ae227e46370405ecfc900abbb056dc 2fimg 1026 Item images 2f1514638157337 apgy1yoqf2sv 69ae227e46370405ecfc900abbb056dc 2fimg 1027 Item images 2f1514638157320 8mmihb7g5i5p 69ae227e46370405ecfc900abbb056dc 2fimg 1024


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engraved with: Pied de Roy Pre Le Marie Paris Poids Des Boulets


fathers father brought back from WW1

Expert appraisals:
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$1,150 - $2,560 (Australian Dollar)
Answered within about 6 hours
Dec 30, 18:24 UTC
By Nora Curl

This is an antique 18th century brass French sector. A sector, also referred to as a proportional compass or military compass, is a tool used for mathematical calculations. The inscription actually reads Pre le Maire Paris, which means it was made for the First (premiere) Mayor of Paris. The first mayor of Paris was Jean Sylvain Bailly who was elected during the first French Revolution in 1789. He was in office from 1789 - 1791 and is presumably the original owner of this brass sector. Poids de Boulets translates to 'weight of balls' making the use of this sector instrument to be like gunner's calipers which measured the outer diameter and the interior bore of a cannon ball to determine the angle and shot of the ball from the cannon. The estimate is based on actual past recorded auction sales of comparables and factors in the provenance of likely original ownership.

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