Callipers by Thomas Wright, early 18th century.

Made:
early 18th century in London
maker:
Thomas Wright
Callipers by Thomas Wright, early 18th century. Callipers by Thomas Wright, early 18th century. Callipers by Thomas Wright, early 18th century. Callipers by Thomas Wright, early 18th century.

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Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

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License this image for commercial use at Science and Society Picture Library

License

Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

Buy

License this image for commercial use at Science and Society Picture Library

License

Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

Buy

License this image for commercial use at Science and Society Picture Library

License

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

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

Gunner's calipers, by T.Wright

Gunner's callipers by Thomas Wright, early 18th century. The callipers can be used as shown to measure the diameter of cannon balls, or with crossed arms to measure the bore of a cannon. The arms are inscribed with tables containing information relating to artillery.

Details

Category:
Mathematics
Object Number:
1940-71
Materials:
brass (copper, zinc alloy)
Measurements:
Overall: 130 mm x 170 mm x 5 mm, 0.085 kg
type:
calliper (gunnery)
credit:
Sotheby and Compan