My mother had an electric Singer from the 1920's but bought a treadle at a church auction to keep in our cottage that did not have electricity at either end of the season.
I learned to sew during the summer so learned on the treadle.
It ended up at my house after Mom passed. A friend called me one day to ask where on earth she could find a good working treadle for their mountain cabin. I loved the machine, but did not need another so off it went to its new home and I still get updates.
Mom's early singer went to my son who begged for it -- I get updates on its health as well.