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Title: Barnard's Co-ordinate spiral slide rule, Serial No. 27/09, i [Go to resource]
Description: Barnard's Co-ordinate spiral slide rule, Serial No. 27/09, in box, with instruction leaflet, dated 1909, Great Turnstile, London License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: spiral slide rule Temporal: 1909 Source: Science Museum Creator: W. F. Stanley & Co. Ltd. Identifier: 1977-480 Go to resource More Like this...
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