The Septenary System of Generating Lines by Simple Continuous Motion.; Part I: Description of Jopling's Double Cranks. Part II: Examples of a Few Hundreds of the Curves Produced.

London: Privately Printed, 1844. paperback. Part I: 16 pages and illustrated with 5 plates. Part II: 8 pages and illustrated with 10 plates. Slim 4to, sewn, in modern wrappers. London: Published by the author [1844].

Price: $50.00

Item #50103

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