Not a clue; my sister says I need to find a support group for all of the antique sewing machines that I have gotten lately; I only have 4 really old ones...1 older Viking Embroidery...1 newer Kenmore/Janome and newer Viking Mega quilter..I so do not thing I'm addicted...yet. My sister just laughs because she knows I really don't do anything else except for work and a girl has got to have fun some how..this is mine