It looks like your machine is missing two spool pins, which might be a bit tricky. It's usually a standard type, but from my experiene, you can get the wrong type for your machine; there are threaded pins, tap-in pins. I have received replacement spool pins seller insisted was correct for my machine, but turned out to be too large. The pins should go in with ease, not a struggle. From other pictures it looks like the new Chinese 15s, have one spool pin on top, and one on the bed under the stitch length lever. The leather belt for the teadle can be bought several places.