One 6-inch brass sector for fortification and gunnery

Made:
1675-1700 in England
One 6-inch brass sector for fortification and gunnery,  English

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One 6-inch brass sector for fortification and gunnery, English
Science Museum Group
© The Board of Trustees of the Science Museum

One 6-inch brass sector for fortification and gunnery, English, c. 1675

Details

Category:
Mathematics
Object Number:
1990-632
Materials:
brass
Measurements:
overall: 3 x 162 x 32 mm
type:
proportion drawing instruments, sectors (gunnery) and sectors (fortication)
credit:
Tesseract