The SINGER Buttonholer #489500 is a vintage sewing accessory from the brand Singer. This buttonholer is designed to be used with Singer sewing machines and comes complete with a manual. Made in the United States, this attachment is perfect for adding decorative buttonholes to your sewing projects. Whether you are a collector of Singer accessories or a seamstress looking to expand your crafting abilities, this buttonholer would have been a valuable addition to your sewing machine in the 1960s.