Blessing, George F. (George Frederick), 1875-1921, Darling, Lewis A. (Lewis Andrew) · New York, J. Wiley & sons; [etc., etc.] · leaf 74
same form ^^but slightly wider than the upper lobe Capital S. 3 strokes. Draw all J_guide and center lines. The outline of theletter consists of portions of two tangent modified ellipses, exactly the samesize and slope but in reversed rela-tive position. Si is the left half ofupper ellipse and the…
Mechanical drawing
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