An uncommon little attachment (underbraider) to go with a more common one (quilter). Underbraider and quilter are original Singer parts and not reproductions.
An Under Braider with Quilter Attachment applies braid to the front side of the fabric but all-the-while stitching from the backside of the fabric. In other words, instead of stitching it on the top of the braid, it stitches through from the bottom of the braid while applying it to the top of the fabric. (See photos for details.)
One thing that is of utmost importance ~ the Quilt Guide must be included because the underbraider will not work properly without it. I tried (just for a test) with using the regular presser foot and the braid crumpled and rippled along the fabric. (The Quilter Arm-Guide is removed and just the foot is used.)
It might be hard to see, but I traced some curves, waves and even loops on the backside of the fabric, then followed along (with the rick rack braid fed from underneath - hence, the 'under' braider) with the quilt guide. It was surprisingly smooth, even around curves and loops. Sometimes going really slow is necessary and other times, smooth, fast motion is appropriate depending on design. You will definitely want to practice. Baby Rick Rack is the size that appropriately fits the Under Braider attachment, but you can use soutache braid, middy braid or yarn.
Imagine adding this to a quilt block... or adorning a Christmas stocking, or a Baby's receiving blanket... In the last two photographs, you will see two examples for how this attachment was used for apparel. The red tulip skirt has rick rack braid stitched to bias and then the wool Christmas gabardine dress has soutache braid looped at the hems.
LOW SHANK: fits the Singer Featherweight 221, 222K and all low, vertical shank Sewing Machines (i.e. 15, 66, 99, 185, 192, 201, 1200, 206, 237, 306, 319, 320, and 328)