That is a Landis #1. I sewed on one for about 10 years and loved mine. I found a landis #3 about 4 years ago and that is what I use now. They do use a feed dog on the bottom and the foot feeds as well. You can still buy needles for them, parts are a little tough to find and they will be used when you find them. One nice thing about the 1 is it is simple with some basic shop know how you can work on it your self. Mine would not even turn due to rust when I got it I worked on it for a week or so and had it making stitches. They are not a fancy as the new machines of today but they will out last them by far. They are not made to sew fast so use a speed reducer if you choose to put a motor on it. Mine was hand powered and still is a friend of mine uses it daily now with no trouble. (Great for holsters, sheaths, belts and many other uses in stitching leather, they don't like nylon though, just my exp though.)