US Patent 1,067,324, granted July 15, 1913 to John E. Dudson of River Point, Rhode Island, assignor to Harry C. Curtis. It describes a method and machine for making multi-colored curtain lace on a jacquard-controlled lace machine, with three or more interchangeable spool colors in each longitudinal strip plus raised Cluny effects and open lacy work. The specification explains the three guide bars, jacks or stop needles, cams and bobbin carriages, and ends with seven claims. Four sheets of drawings show the machine, cams, and color pattern diagrams of sample lace.