A manual of photo-engraving : containing practical instructions for producing photo-engraved plates in relief-line and half-tone with chapters on dry plate development and half-tone color work (1896)
Jenkins, H. (Harry), 1868- · Chicago : Inland Printer · leaf 82
EFFECT OF FOUR-LINE SCREEN. MANUAL OF PHOTOENGRAVING. 51 … MR. LEVYS FOUR-LINE SCREEN. geometrical arrangement being- similar throughoutthe series. Mr. Levy has produced such a screenwith four sets of rulings, each set consisting ofparallel lines. Two of the sets are crossed atright angles to each other, and the other two alsoat right angles to eachother,…
Photoengraving · Color photography
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