Profile gauges for Holtzapffel's standard screw threads
- Made:
- circa 1850 in London
- maker:
- Holtzapffel and Company
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Licenseset of steel profile gauges for Holtzapffel's standard screw
Science Museum Group
© The Board of Trustees of the Science Museum
set of steel profile gauges for Holtzapffel's standard screw threads
Details
- Category:
- Industrial Metrology
- Object Number:
- 2001-486
- Materials:
- steel (metal)
- credit:
- Davies, S. (Mrs.)
