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Description: Book of Jaeger test-type for assessing visual acuity, arranged by Thomas Armstrong and Brother, manufacturing opticians of Manchester, 1860-1920 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: test-types Temporal: 1860-1920 Source: Science Museum Creator: Armstrong,T. and Brother, Thomas (maker) Identifier: A625224 Go to resource More Like this...
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