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Instruction Manual for the Engineer's Slide Rule, by J. Routledge. 32 Pages. Softbound. Very likely one of the first instruction manuals produced for Joshua Routledge's innovative engineer's slide rule, this new reprint is filled with complex, real world examples from the first quarter of the Nineteenth Century. An introduction and commentary by noted author Kenneth Roberts provides historical background for this important document in the history of caluclation and measurement. Limited copies remain. $23.50 (BK-0558) |
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