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Title: Three small screw covers, 15mm diameter, sherardized by Cow [Go to resource]
Description: Three small screw covers, 15mm diameter, sherardized by Cowper Coles in 1929. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: Three sherardized screw covers Temporal: 1929 Source: Science Museum Creator: Cowper Coles, Sherard Identifier: 2002-114 Go to resource More Like this...
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