This offering is a Singer Buttonhole Attachment, from the 1940's. This is a "Black Side" attachment, making it a post war item from the later '40's. It is complete with the necessary screws anc hardware, instruction book, and the original, good box with the Singer anti-rust waxed paper inside. The book has a last date of 1946 for a copyright date. It is attachment #121795 for the Singer Lock Stitch family sewing machines. It is in very good condition for the given age and wtihout damage. If you have any questions about this item, feel free to drop me a note and I'll get back to you asap. Thank you for looking in our shop today!