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Title: Navigational slide rule by Norie and Co., London. [Go to resource]
Description: Navigational slide rule by Norie and Co., London. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: slide rule (navigational) Temporal: c.1825 Source: Science Museum Creator: Norie and Co. Identifier: 1997-847 Go to resource More Like this...
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