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Title: Pocket spectroscope, by R. & J. Beck Ltd., London [Go to resource]
Description: Pocket spectroscope, by R. & J. Beck Ltd., London License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: spectroscope - direct vision Temporal: 1900-1980 Source: Science Museum Creator: R. & J. Beck Ltd Identifier: 1994-1095 Go to resource More Like this...
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