Authorized reproduction of 222 pages full of really great and useful information. This is a reproduction of the entire catalog, from cover to cover. In it are pages covering parts, shuttles, bobbins, needle plates, an interchangeable needle list and more from machines commonly serviced in 1945. With these illustrations of needles, bobbins, shuttles, shuttle carriers, feed dogs and needle plates you can hopefully identify what you have and maybe even who made it as this Master Catalog claims. You will also know what to look for if you need parts or needles.