Original notes Ken Howarth 1971. ICI Withins wallpaper printing works, Radcliffe 1971. "Embossed wallpaper (in relief) uses stainless steel roller made by specialist engravers. Rubber mat used in conjunction with SS roller to ensure perfect embossing. ... In upper part of the mill the engraver prepared rollers (4-5 inches diameter) for printing, each roller representing a different colour. Firstly, pattern is traced on to roller in pencil using tracing paper. Surface of roller sycamore. Surface is divided into squares and thin pieces of malleable brass are shaped and tapped into the wood. The wood has been prepared using tiny chisels to create appropriately shaped grooves to receive the brass strips. The strips are guillotined to length, and held in place with small panel pins. To fill in a solid area (as shown in the photo) a felt inlay is cut and glued into place. A roller take 3 weeks to a month to prepare. Plastic rollers being introduced, not as clear an image especially thin lines."