Shaw, Frank L. (Frank Leslie), b. 1882, Cleveland Foundation. Survey Committee. Cleveland education survey · Cleveland, Ohio : Survey Committee of the Cleveland Foundation · leaf 72
imilar methods were used formaking engravings on copper or steel platesinstead of on wood blocks. Wood engravingsare seldom employed in modern printing, andthe use of copper and steel engravings is limitedalmost entirely to the printing of visiting cards,invitations, and announcements. Nearly… … T3 CD 6 o only black lines or dots, it is first photographeddirectly on a glass plate. If the picture is aphotograph, a glass screen, covered with twosets of fine black lines crossing each other atright angles, is inserted between the lens of thecamera and the photographic plate, for thepurpose of…
Printing industry · Book industries and trade · Vocational Education
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