![](http://www.alamy.com/thumbs/6/D09161FC-34CE-46C1-807E-01864AE2B2DD/2ACGCTG.jpg)
Contact stylus measurement device being used to measure a standard reference contour. This contact stylus measurement instrument is a PGI 1000 from Ta
Contact stylus measurement device being used to measure a standard reference contour. This contact stylus measurement instrument is a PGI 1000 from Taylor Hobson. Photographed at the National Physical Laboratory, Teddington, UK.
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Photo credit: © ANDREW BROOKES, NATIONAL PHYSICAL LABORATORY/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No
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