To Iceblossom. Please be careful with the tape on a vintage sewing machine. I purchased a Singer 201K that someone had marked the seam lines with tape. The tape was gone, but the glue wasn't. It was very difficult to remove the residue glue. I eventually managed to get the glue off, but if you look from an angle you can still see an area where the glue damaged the finish.
https://www.quiltingboard.com/vintage-antique-machine-enthusiasts-f22/help-singer-201k-tape-residue-please-t305027.html