Blessing, George F. (George Frederick), 1875-1921, Darling, Lewis A. (Lewis Andrew) · New York, J. Wiley & sons; [etc., etc.] · leaf 46
/- ^ IT JT Fig. 25. — Using the Compass. surface of the drawing when the instrument is being used. This adjustment (see Fig. 25) places the needle point insuch a position that it willmake the smallest hole pos-sible in the drawing andinsures both nibs of the penbearing evenly on the paper.The…
Mechanical drawing
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