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Description: Light green glass lens mounted in nickel-plated ring with handle, inscribed Normalux, English (?), Bickerton collection, 1891-1930 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: trial lenses Temporal: 1891-1930 Source: Science Museum Creator: Normalux (maker) Identifier: A680530 Go to resource More Like this...
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