http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f70-subject=Photoengraving -- Halftone process) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f70-subject%3DPhotoengraving%20--%20Halftone%20process Results for your query: docsPerPage=100;f70-subject=Photoengraving -- Halftone process Thu, 01 Jan 1970 12:00:00 GMT The most antiquated feature of the printing business. McMurtrie, Douglas C. (Douglas Crawford), 1888-1944 https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT