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Title: Watkin's Standard exposure meter (1900 pattern). [Go to resource]
Description: Watkin's Standard exposure meter (1900 pattern). License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: exposure meter Temporal: 1900 Source: Science Museum Creator: Watkins, Alfred Identifier: http://collectionsonline.nmsi.ac.uk/grab... Go to resource More Like this...
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