London: The Autotype Company, [ca. 1925]. First edition. 12mo., 26 pp. Stiff wrappers, which are lightly soiled. Light foxing on first and last few leaves, else very good. Item #27886
A subtractive color process, which is similar to dye transfer; 3 color pigment sheets are used to transfer images from separation negatives onto a carbon receiver sheet. A vibrant and relatively permanent color process.