There was an article in an issue of Lady’s Patchwork Quilts in the early 2990’s about a quilter named Gerry Salem. She had a company that manufactured the Salem cutting mats. The article also described her involvement and influence in working with the Japanese company that made the rotary cutter and blades with the numbers on the side. The article describes the blade and cutter being developed for paper cutting and did not rotate but would be advanced as each section become dull. She suggested that the cutters be redesigned to rotate then it would then be adaptable to cutting fabric.