Thanks for the info Rodney. I did notice when I looked online that the Eldridge treadles said Eldridge. So what type of machine would fit into a National cabinet? Did they make a National machine? I need to learn more about all these. It is very interesting. The two spool machine sounds wonderful. Would be nice not to have to wind bobbins. I am going to do some looking for those. Is National connected with Eldridge? I'd love to find a machine that will work in my cabinet. The singers do not fit. But, it looks like you could bring the treadle belt up and make it work or does that throw off the sewing?