Decals, Celtic Knot Style for the Singer Featherweight 221, 221K Sewing Machine 1937 1953 cleaning This vintage original Thread Take Up threading This vintage original Thread Take Up Lever is appropriate for both the Singer Featherweight 221 or 222K model sewing machines very scarce attachment to find indeed and we know this attachment is expensive The Solvaset softens the decal to help it blend in to irregular surfaces and melts the edges so they blend in with the painted surface these decals have been specially coated with a very thin layer of inter coat to help protect them from possible chemical reactions that may occur when using some clear coats