And yes, that's a non-electrical treadle sewing machine, currently in use. My grandmothers both had a sewing machine like that. They're still in use in Sri Lanka – and likely other countries, too – because not everyone has electricity, not everyone can afford the required electrical bills to use an electric sewing machine, and if they're relying on sewing to earn their living, a day without electricity – which can and does happen – would seriously damage a tailor's income.
There are little hole-in-the-wall tailor shops all over the place. Some have electric sewing machines, some don't. And, well, technically, in Sri Lanka (so I’m told) tailors are men sewing for men while seamstresses are women who sew for women. Meh. I use the term tailor for both. 🙂