Small screw

Made:
1929
maker:
Sherard Osborn Cowper-Coles
Small screw,12mm long,  sherardized by Cowper Coles in 1929.

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

Small screw,12mm long, sherardized by Cowper Coles in 1929.
Science Museum Group
© The Board of Trustees of the Science Museum

Small screw,12mm long, sherardized by Cowper Coles in 1929.

Details

Category:
Metallurgy
Object Number:
2002-113
Materials:
metal (unknown)
Measurements:
: .4724 in.; 12 mm
type:
small sherardised screw
credit:
Mr. Peter Cowper-Coles.