Jamison, Alpha Pierce. [from old catalog] · New York, J. Wiley & sons; · leaf 212
ONE OF THE FORCINGS, A LATERAL ROD Fig. 7Z of bridge drawing. The sheet is to be drawn to a scale of ij (j- size); all lettering to be free-hand. = r MECHANICAL EXECUTION OF DRAWINGS. J93 PLATE No. 36.
Mechanical drawing
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