Sullivan, Christine [Gordon]. [from old catalog] · New York, Cincinnati [etc.] American book company · leaf 55
Stone Work Stone Joint 1 , I J-ZL TIL rzL II I HI Ezr ^i 1,1.1 i ,1,1 ^^5 I .1 .1 ,1 I, I, I, I -^=1=^?=?^ • Brick Footin 1 … Side View Plan w Fig. 87. ^ MECHANICAL DEVICES, 51 Exercise i.(Fig. %Z), LESSON XX.MECHANICAL DEVICES. Elevation and plan of hexagonal nut and washer Elevation.
Mechanical drawing
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