Sullivan, Christine [Gordon]. [from old catalog] · New York, Cincinnati [etc.] American book company · leaf 33
r lines half through. Fold up the parts and glue the edges,and the desired outlines will be formed. The object of this lesson is to give the pupil a series of exercisesthat will enable him to understand working drawings clearly andthoroughly. To do this he must be able (i) to read a workingdrawing,…
Mechanical drawing
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