That’s just it. They ARE real Singers. And they’re of a “vintage” design. The company making them is the Singer Company, or at least the branch of the Singer Company that now owns the rights to make this model.
I noticed one photo showed a tag on the machine that said “15NL”. That’s the model number of the machine, and it shouldn’t be of any surprise to a buyer that it’s a more recent model of the Singer 15.
CD in Oklahoma