Well now THAT is a great question. I had to go look. There are two little wood needle cases in the drawer with 4 needles in one and some used ones in the other one. Im not really sure they go to this machine as I brought 3 treadles home in the back seat of my car on that trip. We had to take them apart to get them in there. I put all the parts for each machine in a baggie and labeled them so that I could return them to the right machine when I got home. So, Im not sure how to tell what needle this machine needs.. HELP...
Also the machine mechanism is a bit frozen. The wheel will turn about half way, then stops.. I am really hoping to find something a little less precious to start tearing apart for the first time.. I do a lot on my machines, but have never torn them down completely like you have shown on your tute.