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Title: Composite plates of iron and steel for plough mould boards, [Go to resource]
Description: Composite plates of iron and steel for plough mould boards, manufactured by Spear and Jackson, Etna Works, Sheffield, in 1884, communicated by Spear and Jackson License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Temporal: 1884 Source: Science Museum Creator: Spear and Jackson (maker) Identifier: 1889-164/3530 Go to resource More Like this...
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