Inside Out Library
Constructive drawing. A text-book for home instruction, high schools, manual training schools, technical schools and universities (1904)
Hanstein, Herman. [from old catalog] · Chicago, New York [etc.] Keuffel & Esser co. · leaf 26
Plate 8. Fig. 3. -^ 1 \ \ l.^rf,^ \ r/1 \ i/ \« A — — — B Fig (7.Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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