A short 1930 how-to note by Ralph A. Hall on converting a rag shuttle to carry spool shuttles. Cut half-inch dowel spacers, bore quarter-inch holes, and fit them between the shuttle sides to hold the spools in line. Three-sixteenth-inch machine bolts with thumb nuts secure the spools, and a hole bored in the shuttle side leads the thread out. It ends with a tip for laying out a color scheme on a strip of adding machine paper that rolls up with the weaving. Two diagrams show the arrangement.