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Title: Watson Holos paraboloid system, c. 1930 [Go to resource]
Description: Watson Holos paraboloid system, c. 1930 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: microscope condensers Temporal: 1921-1950 Source: Science Museum Creator: Watson, W. and Sons (maker) Identifier: 1980-1459 Go to resource More Like this...
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