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Title: [Go to resource]
Description: Cowell test type, in holder, made by Harrison and Sons, St Martins Lane, London, English, 1950-1970 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: test types Temporal: 1950-1970 Source: Science Museum Creator: Harrison and Sons Limited Identifier: A608270 Go to resource More Like this...
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