Black or clear acrylic seam guide, fits Singer Featherweight 221 and 222 as well as most other vintage Singer machines.
The 3/16″ thick acrylic helps to keep the bed of the machine protected from scratches and features the gold Celtic Knot style decals found on machines up to around 1954. The screw and washer provided slots into the guide and screws into the machine bed closes to the needle, allowing the guide to be adjusted over a 1 1/2″ range, including the standard 1/4″ quilter’s and 5/8″ clothing seam allowances.
For further details on how to attach and use the guide, please see this page, courtesy of the Singer Featherweight Shop.
Also available in a bundle with the Seam Square, which will help you to set up the perfect seam allowance for your project.