Illustrated catalogue and price list of John Thomson Press Company's platen presses : for letterpress and color printing, embossing, bookcover stamping and paper-box cutting and scoring (1896)
John Thomson Press Company · New York City : J. Thomson Press Co. · leaf 58
action of platens which roll to and from the bed and make a slide to the impression, but two methods have been found available ; first, by a combination of links and springs, as in both the old and competitive styles, and second, by means of a cam attached to the platen, this being the new style as… … 52
John Thomson Press Company · Platen presses
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
