Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 107
Fig. 9a … QZ < az » oCC .^ S £^* .^ H ~OS vT Q X J — a o Q o 3 5 6 3 Ml ►-I il 8 ■J ^ < s A _0 S PEESPECTl\i-: DRAWING. SP and rt crosses IIPP. The vertical projection of this inter-section must be vertically in line with this point, and on thelinedrawn between SP^ and a^\ and hence at ?n^. Since the…
Architecture · Building · Carpentry
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