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Title: Slide rule for photographic applications [Go to resource]
Description: Slide rule for photographic applications by W. Ackland, in fitted box (damaged) License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: slide rule (photography) Source: Science Museum Creator: Ackland, W. Identifier: 1985-1188 Go to resource More Like this...
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