Vintage SINGER Professional Buttonholer Attachment 161829 for Slant Needle C12

This listing is for a vintage SINGER Professional Buttonholer attachment, Part No. 161829, designed for Slant Needle Zig-Zag Sewing Machines. This attachment allows users to sew various styles and sizes of buttonholes and eyelets uniformly and automatically. The set includes the main buttonholer unit, multiple buttonhole templates (brown and green), and other small parts, all housed in its original box with a foam insert. The box also includes a supplement instruction sheet (Form 2167-B Supplement (567)). This is a great accessory for vintage Singer sewing machine enthusiasts or anyone looking to add professional buttonhole capabilities to their compatible machine. Please see all images for condition and included items.