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Title: Screw, 64mm long, sherardized by Cowper Coles in 1927, usin [Go to resource]
Description: Screw, 64mm long, sherardized by Cowper Coles in 1927, using a mixture of zinc dust, pumice and resin. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: Sherardized screw Temporal: 1927 Source: Science Museum Creator: Cowper Coles, Sherard Identifier: 2002-147 Go to resource More Like this...
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