Color prints made using a combination printing process involving an intaglio, or occasionally lithographic, key plate which prints the image, after which color is superimposed on the print using wood blocks. The process was patented by an Englishman, George Baxter, in 1835, and was very popular up into the 1870s. This term refers to prints of this process not made by Baxter himself; the term Baxter prints is sometimes used to refer exclusively to prints made by Baxter.