My mom had this very same 1971 Singer sewing machine and loved it so much she used it for years. She eventually upgraded to a newer Singer, but used her 1971 machine for tricky sewing jobs; she knew that '71 inside and out.
This 1971 commercial brought back great memories of shopping at fabric stores with my mom for just the right sewing pattern. Then I'd pick out the fabric I'd want for my outfit. I can still hear the riiipppp sound as scissors met cutting table, at the fabric cutting counter. Or if the fabric was thick, it would be a whoosh-snip-snip sound.
Thanks mom, for the great sewing memories.