The grammar of photo-engraving : containing instruction in drawing, chemistry and optics, as applied to photo-engraving, and a practical treatise on the art of half-tone, zinc etching, swelled gelatine, lithotype and chalk plate engraving, as practiced in the United States (1895)
Farquhar, H. D. (Harry D.), Eder, Josef Maria, 1855-1944 · London : Dawbard & Ward · leaf 79
74 THE GRAMMAK OF PHOTO-ENGRAVING. most popular being the line plates, 1, 1, fig. 30, two screen plates being necessary for the production of negatives as will be described farther on. … Fig. 30 Another style is a combination of 1, 150 lines to the inch, on one plate, 2, fig 30. Still another has dots on it, arranged like a checker board, only the corners are more rounded ; the latter is very extensively used, and gives good results. ^ '/£ m %z %* n Fig. 31 The Kit for the…
Photoengraving
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
