Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 388
ft ^^ We/T ^BDPOft 0 /^*if value. The white of the paper untouched by the pen gives awhite value. Fig. 5 shows only two values—black and white;Fig. 6 also has two,—grayand white; Fig. 7 has thethree,—black, gray and white.The first is harsh, the secondis pale, and the third seemsmost satisfactory.… … Fig. 5. BLACK AND WHITE.
Architecture · Building · Carpentry
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
