FRENCH BRASS GRILLIET GUNNERY SECTOR RULE RULER c1710

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Source eBay UK

This is for a fabulous French brass Gunnery Sector Rule from the early 1700s. Is a fabulous example and for its age it is pristine. It is marked with the makers name Grilliet of Paris. It has scales for line of equal parts, polygons, line of chords, metals, weights of shot and gun calibre. Unlike English sectors, which were used for general calculation, the French ones were generally intended for gunnery calculations. It is hinged and has its original brass pins to hold it together when closed and keep it aligned. It is a top quality sector with thick gauge brass and fine markings. It is in absolute excellent condition with no damage to it anywhere and the markings beautifully clear. Please check out all the other antique tools, smoking and writing implements, scientific and optical instruments, art deco and art nouveau items and all the other vintage ladies and gentlemans accessories i am selling this week. I will always combine shipping to make it cheap to buy a lot. Be sure to add me to your favourites list Check out my other items For overseas items that have a value exceeding £39 'International Signed for' service is mandatory, as it is on all shipping to Italy and China. If paying by foreign cheque, money order or bankers draft please contact me for the encashment fee. For domestic deliveries, special delivery is mandatory read more

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