Knight's second patent drawing for his color printing patent.
Creative Commons LicenseJeremy Norman Collection of Images - Creative Commons
The second plate published with Knight's patent (slightly cropped for clarity). Another method "involved fixing a special plate to the bed of a hand platen press. It held the four blocks and could be revolved. It turned a quarter of a revolution after each impression, the blocks being fastened to a small turntable which also turned in concert with the main turntable. They thus always faced in the right direction. This device was used to print four pictures at once, which were later divided. As Knight was the publisher of this book it seems reasonable to assume that this system was also used" (Wakeman, Victorian Colour Printing [1981] 12-13).
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