Commercial engraving and printing : a manual of practical instruction and reference covering commercial illustrating and printing by all processes for advertising managers, printers, engravers, lithographers, paper men, photographers, commercial artists, salesmen, instructors, students and all others interested in these and allied trades (1924)
Hackleman, Charles W. (Charles William), 1868- · Indianapolis : Commercial Engraving Pub. Co. · leaf 51
COMMERCIAL PHOTOGRAPHY Ag. … Square halftones, with finishing line, 150 line. Made from unretouched photographs. The view at left is an exact reproduction of the original photograph and that at the right shows a partial correction of the distortion by tipping and bringing the top of the copy nearer the plate than the bottom.…
