I have a genuine Singer walking foot for my Singer 301. It has the word "Singer" along the bottom of the white box which holds the mechanism. The clue is that the word is at the bottom, and normally for other walking feet, it is at the top. Additionally, I have a generic walking foot for my Singer 301. I also have several other walking feet, both generic and vintage, that work on my Singer 401 and another for the 500, so I know they are out there. All of them work. I got most of them on e-bay. There is a Singer penguin walking foot also, but not for slant machines, and very pricey.