The Free-Arm Featherweight 222K and How It Differs From the Featherweight 221

The Singer Featherweight 222K Sewing Machine (and the difference between a Singer 221 model)   UPDATE:  Click here for a side-by-side comparison images and reference page. Approximately 100,000 222K Featherweights were made worldwide and are one of the best sewing machines ever made. Somet...