Cheryl is sharing some of her experience with using this sewing machine. This is a clone of the Willcox & Gibbs chain stitch sewing machine. All parts are pretty much interchangeable (I believe). The hand crank wheel portion of her machine is actually from a Willcox & Gibbs. This machine head was originally in a treadle cabinet and she used it for awhile that way before converting it to a hand crank. Chain stitch sewing machines use only one thread (unlike a lockstitch which requires two separate threads).