Notes on technical sketching and free hand lettering for engineering students (1912)
Smith, Alton Lincoln, 1867- [from old catalog] · Worcester, Mass., The author · leaf 17
/ici^ fA \ … F G H- G Fig. 7 15 In Fig. 7, the object to be represented is a triangular pyramid JKL-0. It is placed inside a glassbox ABCDEFGH, the back side of which is lacking. A working drawing for such an object should givethe size and exact shape of the base, the altitude and the location of the vertex…
Mechanical drawing · Lettering
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