The Speed O Knit 4 Ply Book Patterns for Knitting Machines VTG 1960 is a vintage knitting instructional book published by the Speed-O-Knit Home Knitting Institute in the United States. With a focus on machine knitting, this book provides patterns and instructions for creating various projects using a 4 ply knitting machine. Perfect for crafters looking to expand their knitting skills and create unique pieces, this unit offers a collection of patterns and techniques for the Speed-O-Knit machine.