Inside Out LibraryPractical draughtsmen's work, with numerous engravings and diagrams (1903)Hasluck, Paul N. (Paul Nooncree), 1854-1931, ed · Philadelphia, D. McKay · leaf 34Fig. 37.—Spring Bow Dividers. … Fig. 38.—Spring Bow Poncil.Mechanical drawingInternet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.More pictures from Practical draughtsmen's work, with numerous engravings and diagramsMore like this
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