Varnished interlacing sheets of leather in a cylinder shape

Made:
1912-1914 in Edinburgh
maker:
Alexander Crum Brown
Interlacing sheets of varnished different coloured leather in a Knotted cylinder of interlacing sheet in varnished leather Knotted cylinder of interlacing sheet in varnished leather

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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 

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 

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

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Interlacing sheets of varnished different coloured leather in a
Science Museum Group
© The Board of Trustees of the Science Museum

Knotted cylinder of interlacing sheet in varnished leather
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Knotted cylinder of interlacing sheet in varnished leather
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Interlacing sheets of varnished different coloured leather in a cylinder shape, by Alexander Crum Brown, Edinburgh, Scotland, United Kingdom, 1912-1914. Described in the Napier Tercentenary Handbook as a knotted cylinder of gradual colours.

If the two edges of the plane above are matched with a different colour when the surface is rolled to make a cylinder, the outcome is one surface wrapped three times around. This is made clear by the graduation in colouring. Crum-Brown referred to this as ‘knotted’ as opposed to ‘locked’.

Details

Category:
Mathematics
Object Number:
2006-61
Materials:
leather and complete
Measurements:
overall: 105 mm 70 mm, .06kg
type:
model - representation
credit:
School of Mathematics, The University of Edinburgh