Specimen of steel produced by the Basic or Thomas-Gilchrist process
- Made:
- 1887
This image is released under a CC BY-NC-SA 4.0
Licence
License this image for commercial use at Science and Society Picture Library
LicenseSpecimen of steel produced by the Basic or Thomas-Gilchrist
Science Museum Group
© The Board of Trustees of the Science Museum
Specimen of steel produced by the Basic or Thomas-Gilchrist process, 1887, 1 1/4" square plate punched along four lines of enclosed square and bent along those lines