Mechanical drawing self-taught: comprising instructions in the selection and preparation of drawing instruments, elementary instruction in practical mechanical drawing together with examples in simple geometry and elementary mechanism, including screw threads, gear wheels, mechanical motions, engines and boilers (1883)
Fig. 30 I: enclosing a glass cylinder, which appears through theopenings in the brass shell. Figure 304 represents an iron planing machinewhose lin(.-shadiiio- is so evenly effected that it aftbrdsan excc^llcnt exain|)l{^ of shading. Its parts are similarto those siiown in the iron planer in I^gure… … 1^- ^o.
Mechanical drawing
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![An illustration from Illustrated catalogue of the extraordinary collection of art treasures and antiquities acquired during the past year by Professore Commendatore Elia Volpi ... to be sold at unrestricted public sale at the American Art Galleries [on Monday, Tuesday and Wednesday afternoon, Dec. 17th, 18th and 19th, 1917] (1917)](https://img.insideoutlibrary.com/img/200/ia-illustratedcatal00volp-177-117.webp)
