It is a Singer, but it's a recent or current Indian or Chinese made machine. Qualities vary. Most are shiny and gaudy.
I have only one link to a source of them and that's the Indian Singer site:
{
http://www.singerindia.net/Straight_Stich.aspx?id=1 }
These machines come as treadles, hand crank, and electrics. I've yet to see one in person but there is no Singer shop in Springfield.
Joe