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Description: Cubes of solidified gum extract described as too soft for manufacturing purposes, exhibited by India Rubber Guttapercha and Telegraph Works Co. Ltd. U.S.A., from Africa, 1871-1920 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: extracts Temporal: 1871-1920 Source: Science Museum Identifier: A675867 Go to resource More Like this...
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