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Title: Comparative or reducing slide rule, ivory, by J. Long, 20 Li [Go to resource]
Description: Comparative or reducing slide rule, ivory, by J. Long, 20 Little Tower Street, London, 9" x 1 3/8", c. 1850 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: slide rule Temporal: 1840-1850 Source: Science Museum Creator: Long, Joseph Identifier: 1954-316 Go to resource More Like this...
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