I just saw this on another forum-
"Last Thursday I broke the old belt on my treadle, just as I was really happy with my stitches, speed, and everything. I went online, and chose "Discount Sewing Machine", as they sold vintage sewing machine parts. Ordered online, and was hoping that within a week or 10 days I'd get my belt. Much to my surprise, it came in this morning's mail! Now that is great service. If you have a vintage sewing macine and need any parts, I highly recommend them.
WWW.Discountsewingmachine.com They take paypal, or you can phone them and send them a check if that's more convenient for you."