Gunnery callipers

Made:
1601-1700 in France

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Science Museum Group Collection
© The Board of Trustees of the Science Museum

Science Museum Group Collection
© The Board of Trustees of the Science Museum

Science Museum Group Collection
© The Board of Trustees of the Science Museum

Callipers, used for artillery purposes, French, 17th century. Callipers were used to measure the diameter of cannon balls and the bores of cannons. This example also contained scales for artillery calculations

Details

Category:
Mathematics
Object Number:
1883-138
Materials:
brass (copper, zinc alloy) and steel (metal)
Measurements:
overall (closed): 10 mm x 85 mm x 192 mm, 0.236 kg
type:
calliper (gunnery)
credit:
Victoria and Albert Museum