Originally Posted by
khogue
I have a 15-91 from a recent trade, I've replaced the handwheel and bought a reproduction bobbin winder and it seems to work okay using a hand crank, I haven't tried it in the treadle yet.
Do be cautious. Many 15-91's cannot be converted to treadle.
Here's the thread to read:
Can a Singer 15-91 (1951 model year) be converted to a treadle?